diff --git a/Cargo.lock b/Cargo.lock
index 9a147ba..d34e88f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -88,7 +88,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e01ed3140b2f8d422c68afa1ed2e85d996ea619c988ac834d255db32138655cb"
 dependencies = [
  "quote",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -204,7 +204,7 @@ dependencies = [
  "actix-router",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -244,6 +244,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "aliasable"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "250f629c0161ad8107cf89319e990051fae62832fd343083bea452d93e2205fd"
+
 [[package]]
 name = "alloc-no-stdlib"
 version = "2.0.4"
@@ -259,6 +265,33 @@ dependencies = [
  "alloc-no-stdlib",
 ]
 
+[[package]]
+name = "allsorts"
+version = "0.14.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afb67debdbc7e8b0716e7b10ce247ff6cd2811b0b478969158b16ac58995d16b"
+dependencies = [
+ "bitflags 1.3.2",
+ "bitreader",
+ "brotli-decompressor 2.5.1",
+ "byteorder",
+ "encoding_rs",
+ "flate2",
+ "glyph-names",
+ "itertools",
+ "lazy_static",
+ "libc",
+ "log",
+ "num-traits",
+ "ouroboros",
+ "rustc-hash",
+ "tinyvec",
+ "ucd-trie",
+ "unicode-canonical-combining-class",
+ "unicode-general-category",
+ "unicode-joining-type",
+]
+
 [[package]]
 name = "anstream"
 version = "0.6.14"
@@ -308,6 +341,12 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "arrayvec"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
+
 [[package]]
 name = "askama"
 version = "0.12.1"
@@ -344,7 +383,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "serde",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -370,7 +409,7 @@ checksum = "c6fa2087f2753a7da8cc1c0dbfcf89579dd57458e36769de5ac750b4671737ca"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -394,6 +433,12 @@ dependencies = [
  "rustc-demangle",
 ]
 
+[[package]]
+name = "barcoders"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a3826fb6e98ec72c0c0db8c9a40af4932d16793021027469857e84c1b50a1e8f"
+
 [[package]]
 name = "base64"
 version = "0.21.7"
@@ -427,6 +472,15 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
 
+[[package]]
+name = "bitreader"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bdd859c9d97f7c468252795b35aeccc412bdbb1e90ee6969c4fa6328272eaeff"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "block-buffer"
 version = "0.10.4"
@@ -444,7 +498,17 @@ checksum = "74f7971dbd9326d58187408ab83117d8ac1bb9c17b085fdacd1cf2f598719b6b"
 dependencies = [
  "alloc-no-stdlib",
  "alloc-stdlib",
- "brotli-decompressor",
+ "brotli-decompressor 4.0.1",
+]
+
+[[package]]
+name = "brotli-decompressor"
+version = "2.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e2e4afe60d7dd600fdd3de8d0f08c2b7ec039712e3b6137ff98b7004e82de4f"
+dependencies = [
+ "alloc-no-stdlib",
+ "alloc-stdlib",
 ]
 
 [[package]]
@@ -457,6 +521,17 @@ dependencies = [
  "alloc-stdlib",
 ]
 
+[[package]]
+name = "bstr"
+version = "1.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05efc5cfd9110c8416e471df0e96702d58690178e206e61b7173706673c93706"
+dependencies = [
+ "memchr",
+ "regex-automata",
+ "serde",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.16.0"
@@ -542,6 +617,31 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam-deque"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "613f8cc01fe9cf1a3eb3d7f488fd2fa8388403e97039e2f73692932e291a770d"
+dependencies = [
+ "crossbeam-epoch",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-epoch"
+version = "0.9.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b82ac4a3c2ca9c3460964f020e1402edd5753411d7737aa39c3714ad1b5420e"
+dependencies = [
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22ec99545bb0ed0ea7bb9b8e1e9122ea386ff8a48c0922e43f36d45ab09e0e80"
+
 [[package]]
 name = "crypto-common"
 version = "0.1.6"
@@ -573,7 +673,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "strsim",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -584,7 +684,17 @@ checksum = "733cabb43482b1a1b53eee8583c2b9e8684d592215ea83efd305dd31bc2f0178"
 dependencies = [
  "darling_core",
  "quote",
- "syn",
+ "syn 2.0.68",
+]
+
+[[package]]
+name = "datamatrix"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9133f6cb9217da268046cfa9b5916b37d7c77c11707a8b7e95474a816154c42"
+dependencies = [
+ "arrayvec",
+ "flagset",
 ]
 
 [[package]]
@@ -623,7 +733,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustc_version",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -662,7 +772,7 @@ dependencies = [
  "heck 0.4.1",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -675,7 +785,7 @@ dependencies = [
  "dsl_auto_type",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -695,7 +805,7 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "209c735641a413bc68c4923a9d6ad4bcb3ca306b794edaa7eb0b3228a99ffb25"
 dependencies = [
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -720,7 +830,7 @@ dependencies = [
  "heck 0.5.0",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -773,6 +883,12 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4443176a9f2c162692bd3d352d745ef9413eec5782a80d8fd6f8a1ac692a07f7"
 
+[[package]]
+name = "flagset"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cdeb3aa5e95cf9aabc17f060cfa0ced7b83f042390760ca53bf09df9968acaa1"
+
 [[package]]
 name = "flate2"
 version = "1.0.30"
@@ -822,7 +938,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -879,6 +995,12 @@ version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40ecd4077b5ae9fd2e9e169b102c6c330d0605168eb0e8bf79952b256dbefffd"
 
+[[package]]
+name = "glyph-names"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3531d702d6c1a3ba92a5fb55a404c7b8c476c8e7ca249951077afcbe4bc807f"
+
 [[package]]
 name = "h2"
 version = "0.3.26"
@@ -1007,6 +1129,15 @@ version = "1.70.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8478577c03552c21db0e2724ffb8986a5ce7af88107e6be5d2ee6e158c12800"
 
+[[package]]
+name = "itertools"
+version = "0.10.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.11"
@@ -1037,6 +1168,12 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4345964bb142484797b161f473a503a434de77149dd8c7427788c6e13379388"
 
+[[package]]
+name = "lazy_static"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
+
 [[package]]
 name = "li7y"
 version = "0.0.0"
@@ -1045,13 +1182,19 @@ dependencies = [
  "actix-web",
  "askama",
  "askama_actix",
+ "barcoders",
+ "datamatrix",
  "diesel",
  "diesel-async",
  "diesel-derive-enum",
  "diesel_migrations",
  "env_logger",
  "log",
+ "mime",
+ "printpdf",
+ "rust-fontconfig",
  "serde",
+ "thiserror",
  "uuid",
 ]
 
@@ -1067,6 +1210,12 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
 
+[[package]]
+name = "linked-hash-map"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
+
 [[package]]
 name = "local-channel"
 version = "0.1.5"
@@ -1100,6 +1249,23 @@ version = "0.4.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
 
+[[package]]
+name = "lopdf"
+version = "0.31.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07c8e1b6184b1b32ea5f72f572ebdc40e5da1d2921fa469947ff7c480ad1f85a"
+dependencies = [
+ "encoding_rs",
+ "flate2",
+ "itoa",
+ "linked-hash-map",
+ "log",
+ "md5",
+ "pom",
+ "time",
+ "weezl",
+]
+
 [[package]]
 name = "md-5"
 version = "0.10.6"
@@ -1110,6 +1276,12 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "md5"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "490cc448043f947bae3cbee9c203358d62dbee0db12107a74be5c30ccfd09771"
+
 [[package]]
 name = "memchr"
 version = "2.7.4"
@@ -1180,6 +1352,16 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "mmapio"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0204e2cac68f5b2e35b7ec8cb5d906f6e58e78dad8066a30b6ee54da99bb03dd"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "nom"
 version = "7.1.3"
@@ -1230,6 +1412,39 @@ version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
+name = "ouroboros"
+version = "0.17.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2ba07320d39dfea882faa70554b4bd342a5f273ed59ba7c1c6b4c840492c954"
+dependencies = [
+ "aliasable",
+ "ouroboros_macro",
+ "static_assertions",
+]
+
+[[package]]
+name = "ouroboros_macro"
+version = "0.17.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec4c6225c69b4ca778c0aea097321a64c421cf4577b331c61b229267edabb6f8"
+dependencies = [
+ "heck 0.4.1",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.68",
+]
+
+[[package]]
+name = "owned_ttf_parser"
+version = "0.19.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "706de7e2214113d63a8238d1910463cfce781129a6f263d13fdb09ff64355ba4"
+dependencies = [
+ "ttf-parser",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.12.3"
@@ -1301,6 +1516,15 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
 
+[[package]]
+name = "pom"
+version = "3.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c972d8f86e943ad532d0b04e8965a749ad1d18bb981a9c7b3ae72fe7fd7744b"
+dependencies = [
+ "bstr",
+]
+
 [[package]]
 name = "postgres-protocol"
 version = "0.6.6"
@@ -1342,6 +1566,42 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
+[[package]]
+name = "printpdf"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c30a4cc87c3ca9a98f4970db158a7153f8d1ec8076e005751173c57836380b1d"
+dependencies = [
+ "js-sys",
+ "lopdf",
+ "owned_ttf_parser",
+ "time",
+]
+
+[[package]]
+name = "proc-macro-error"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
+dependencies = [
+ "proc-macro-error-attr",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro-error-attr"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "version_check",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.86"
@@ -1390,6 +1650,26 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "rayon"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b418a60154510ca1a002a752ca9714984e21e4241e804d32555251faf8b78ffa"
+dependencies = [
+ "either",
+ "rayon-core",
+]
+
+[[package]]
+name = "rayon-core"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1465873a3dfdaa8ae7cb14b4383657caab0b3e8a0aa9ae8e04b044854c8dfce2"
+dependencies = [
+ "crossbeam-deque",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.4.1"
@@ -1443,12 +1723,30 @@ version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a66a03ae7c801facd77a29370b4faec201768915ac14a721ba36f20bc9c209b"
 
+[[package]]
+name = "rust-fontconfig"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea6002602a06c22f5f4e5ea2ed68854bfce071b48e1092c03874e34d0b59eb4b"
+dependencies = [
+ "allsorts",
+ "mmapio",
+ "rayon",
+ "xmlparser",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
+[[package]]
+name = "rustc-hash"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
+
 [[package]]
 name = "rustc_version"
 version = "0.4.0"
@@ -1503,7 +1801,7 @@ checksum = "500cbc0ebeb6f46627f50f3f5811ccf6bf00643be300b4c3eabc0ef55dc5b5ba"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
@@ -1600,6 +1898,12 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+
 [[package]]
 name = "stringprep"
 version = "0.1.5"
@@ -1623,6 +1927,16 @@ version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "unicode-ident",
+]
+
 [[package]]
 name = "syn"
 version = "2.0.68"
@@ -1634,6 +1948,26 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.61"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c546c80d6be4bc6a00c0f01730c08df82eaa7a7a61f11d656526506112cc1709"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.61"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "46c3384250002a6d5af4d114f2845d37b57521033f30d5c3f46c4d70e1197533"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.68",
+]
+
 [[package]]
 name = "time"
 version = "0.3.36"
@@ -1790,12 +2124,24 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "ttf-parser"
+version = "0.19.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49d64318d8311fc2668e48b63969f4343e0a85c4a109aa8460d6672e364b8bd1"
+
 [[package]]
 name = "typenum"
 version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
+[[package]]
+name = "ucd-trie"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed646292ffc8188ef8ea4d1e0e0150fb15a5c2e12ad9b8fc191ae7a8a7f3c4b9"
+
 [[package]]
 name = "unicase"
 version = "2.7.0"
@@ -1811,12 +2157,30 @@ version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08f95100a766bf4f8f28f90d77e0a5461bbdb219042e7679bebe79004fed8d75"
 
+[[package]]
+name = "unicode-canonical-combining-class"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6925586af9268182c711e47c0853ed84131049efaca41776d0ca97f983865c32"
+
+[[package]]
+name = "unicode-general-category"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2281c8c1d221438e373249e065ca4989c4c36952c211ff21a0ee91c44a3869e7"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
 
+[[package]]
+name = "unicode-joining-type"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22f8cb47ccb8bc750808755af3071da4a10dcd147b68fc874b7ae4b12543f6f5"
+
 [[package]]
 name = "unicode-normalization"
 version = "0.1.23"
@@ -1904,7 +2268,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
  "wasm-bindgen-shared",
 ]
 
@@ -1926,7 +2290,7 @@ checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -1947,6 +2311,12 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "weezl"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53a85b86a771b1c87058196170769dd264f66c0782acf1ae6cc51bfd64b39082"
+
 [[package]]
 name = "whoami"
 version = "1.5.1"
@@ -1958,6 +2328,28 @@ dependencies = [
  "web-sys",
 ]
 
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
@@ -2106,6 +2498,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "xmlparser"
+version = "0.13.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "66fee0b777b0f5ac1c69bb06d361268faafa61cd4682ae064a171c16c433e9e4"
+
 [[package]]
 name = "zerocopy"
 version = "0.7.34"
@@ -2123,7 +2521,7 @@ checksum = "15e934569e47891f7d9411f1a451d947a60e000ab3bd24fbb970f000387d1b3b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.68",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index b20ce1e..22fe2d2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,11 +14,17 @@ actix-files = "0.6.6"
 actix-web = "4.8.0"
 askama = { version = "0.12.1", features = ["with-actix-web"] }
 askama_actix = "0.14.0"
+barcoders = { version = "2.0.0", default-features = false, features = ["std"] }
+datamatrix = "0.3.1"
 diesel = { version = "2.2.1", features = ["uuid"] }
 diesel-async = { git = "https://github.com/weiznich/diesel_async.git", version = "0.4.1", features = ["postgres", "deadpool", "async-connection-wrapper"] }
 diesel-derive-enum = { version = "2.1.0", features = ["postgres"] }
 diesel_migrations = { version = "2.2.0", features = ["postgres"] }
 env_logger = "0.11.3"
 log = "0.4.21"
+mime = "0.3.17"
+printpdf = "0.7.0"
+rust-fontconfig = "0.1.7"
 serde = { version = "1.0.203", features = ["serde_derive"] }
+thiserror = "1.0.61"
 uuid = { version = "1.9.0", features = ["serde", "v4"] }
diff --git a/src/api/v1/label.rs b/src/api/v1/label.rs
new file mode 100644
index 0000000..4fdd977
--- /dev/null
+++ b/src/api/v1/label.rs
@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: 2024 Simon Bruder <simon@sbruder.de>
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+use actix_web::http::header::{ContentDisposition, ContentType, DispositionParam, DispositionType};
+use actix_web::{error, get, web, HttpResponse, Responder};
+use serde::Deserialize;
+use uuid::Uuid;
+
+use crate::label::{Label, LabelPage, LabelPreset};
+
+pub fn config(cfg: &mut web::ServiceConfig) {
+    cfg.service(items);
+}
+
+#[derive(Debug, Deserialize)]
+struct QueryParams {
+    // FIXME: serde_urlencoded does not support sequences
+    ids: String,
+    preset: LabelPreset,
+}
+
+#[get("/label/items")]
+async fn items(params: web::Query<QueryParams>) -> actix_web::Result<impl Responder> {
+    let ids = params
+        .ids
+        .split(',')
+        .skip_while(|s| s.is_empty()) // to make the empty string parse as an empty iterator
+        .map(Uuid::try_parse)
+        .collect::<Result<Vec<Uuid>, uuid::Error>>()
+        .map_err(error::ErrorInternalServerError)?;
+
+    let label_config = params.preset.clone().into();
+
+    let label = Label {
+        pages: ids
+            .into_iter()
+            .map(|id| LabelPage {
+                id: Some(id),
+                short_id: None,
+            })
+            .collect(),
+        config: label_config,
+    };
+
+    Ok(HttpResponse::Ok()
+        .insert_header(ContentType(mime::APPLICATION_PDF))
+        .insert_header(ContentDisposition {
+            disposition: DispositionType::Inline,
+            parameters: vec![DispositionParam::Filename(
+                "li7y-item-labels.pdf".to_string(),
+            )],
+        })
+        .body(label.generate().map_err(error::ErrorInternalServerError)?))
+}
diff --git a/src/api/v1/mod.rs b/src/api/v1/mod.rs
index 09e9d9a..581d6bf 100644
--- a/src/api/v1/mod.rs
+++ b/src/api/v1/mod.rs
@@ -4,9 +4,12 @@
 
 mod item;
 mod item_class;
+mod label;
 
 use actix_web::web;
 
 pub fn config(cfg: &mut web::ServiceConfig) {
-    cfg.configure(item::config).configure(item_class::config);
+    cfg.configure(item::config)
+        .configure(item_class::config)
+        .configure(label::config);
 }
diff --git a/src/label/barcode.rs b/src/label/barcode.rs
new file mode 100644
index 0000000..1178a49
--- /dev/null
+++ b/src/label/barcode.rs
@@ -0,0 +1,60 @@
+// SPDX-FileCopyrightText: 2024 Simon Bruder <simon@sbruder.de>
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+use barcoders::sym::code128::Code128;
+use datamatrix::{DataMatrix, SymbolSize};
+use printpdf::{ColorBits, ColorSpace, Image, ImageXObject, Px};
+use uuid::Uuid;
+
+fn create_image(width: usize, height: usize, data: Vec<bool>) -> Image {
+    Image::from(ImageXObject {
+        width: Px(width),
+        height: Px(height),
+        color_space: ColorSpace::Greyscale,
+        bits_per_component: ColorBits::Bit8, // TODO: why does Bit1 not work?
+        image_data: data
+            .iter()
+            .map(|x| match x {
+                true => 0,
+                false => u8::MAX,
+            })
+            .collect(),
+        interpolate: false,
+        image_filter: None,
+        smask: None,
+        clipping_bbox: None,
+    })
+}
+
+pub fn encode_data_matrix(id: Uuid) -> Result<Image, datamatrix::data::DataEncodingError> {
+    let code = DataMatrix::encode(
+        &id.to_string().bytes().collect::<Vec<u8>>(),
+        SymbolSize::Square22,
+    )?;
+
+    let bitmap = code.bitmap();
+    assert_eq!(bitmap.width(), 22);
+    assert_eq!(bitmap.height(), 22);
+
+    let mut buf = vec![false; bitmap.width() * bitmap.height()];
+    for (x, y) in bitmap.pixels() {
+        buf[x + y * bitmap.width()] = true;
+    }
+
+    Ok(create_image(22, 22, buf))
+}
+
+pub fn encode_code128(text: String) -> Result<Image, barcoders::error::Error> {
+    let mut text = text;
+    // barcoders uses special characters for setting the Code128 type (A, B, C)
+    text.insert(0, 'À');
+
+    let buf: Vec<bool> = Code128::new(text)?
+        .encode()
+        .iter()
+        .map(|x| !matches!(x, 0))
+        .collect();
+
+    Ok(create_image(buf.len(), 1, buf))
+}
diff --git a/src/label/mod.rs b/src/label/mod.rs
new file mode 100644
index 0000000..71d2cfc
--- /dev/null
+++ b/src/label/mod.rs
@@ -0,0 +1,239 @@
+// SPDX-FileCopyrightText: 2024 Simon Bruder <simon@sbruder.de>
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+mod barcode;
+mod preset;
+
+use std::fs::File;
+use std::sync::OnceLock;
+
+use pdf::{IndirectFontRef, PdfLayerReference};
+use printpdf as pdf;
+use printpdf::{ImageTransform, Mm, PdfDocument, PdfDocumentReference, Pt, Px};
+use rust_fontconfig::{FcFontCache, FcPattern};
+use thiserror::Error;
+use uuid::Uuid;
+
+use barcode::{encode_code128, encode_data_matrix};
+pub use preset::LabelPreset;
+
+#[derive(Error, Debug)]
+pub enum Error {
+    #[error("could not encode data matrix")]
+    DataMatrixEncoding(datamatrix::data::DataEncodingError),
+    #[error("could not encode barcode: {0}]")]
+    Barcoders(#[from] barcoders::error::Error),
+    #[error("IO error: {0}")]
+    Io(#[from] std::io::Error),
+    #[error("PDF error: {0}")]
+    PrintPdf(#[from] printpdf::Error),
+
+    #[error("data is incomplete ({0} not given in data, but required in config)")]
+    DataIncomplete(String),
+    #[error("can’t create labels without any pages")]
+    NoPages,
+}
+
+// The datamatrix crate does not implement Into<std::error::Error> for its error type
+impl From<datamatrix::data::DataEncodingError> for Error {
+    fn from(value: datamatrix::data::DataEncodingError) -> Self {
+        Self::DataMatrixEncoding(value)
+    }
+}
+
+type Result<T> = std::result::Result<T, Error>;
+
+// this is implemented based on lazy_static’s recommendation
+fn fc_cache() -> &'static FcFontCache {
+    static FC_CACHE: OnceLock<FcFontCache> = OnceLock::new();
+    FC_CACHE.get_or_init(FcFontCache::build)
+}
+
+fn get_font_path(name: &str) -> String {
+    fc_cache()
+        .query(&FcPattern {
+            name: Some(name.to_string()),
+            ..Default::default()
+        })
+        .expect("Could not find font")
+        .path
+        .clone()
+}
+
+fn mm_to_scale_factor(mm: Mm, size: Px) -> f32 {
+    mm / Mm::from(Pt(0.24 * (size.0 as f32)))
+}
+
+#[derive(Debug)]
+pub struct LabelConfig {
+    width: Mm,
+    height: Mm,
+    data_matrix: Option<DataMatrixConfig>,
+    code128: Option<Code128Config>,
+    id_text: Option<IdTextConfig>,
+    short_id_text: Option<IdTextConfig>,
+}
+
+#[derive(Debug)]
+pub struct DataMatrixConfig {
+    scale: Mm,
+    position: (Mm, Mm),
+}
+
+impl DataMatrixConfig {
+    fn draw(&self, layer: &PdfLayerReference, id: Option<Uuid>) -> Result<()> {
+        let image = encode_data_matrix(id.ok_or(Error::DataIncomplete("UUID".to_string()))?)?;
+
+        let size = image.image.width;
+
+        image.add_to_layer(
+            layer.clone(),
+            ImageTransform {
+                translate_x: Some(self.position.0),
+                translate_y: Some(self.position.1),
+                scale_x: Some(mm_to_scale_factor(self.scale, size)),
+                scale_y: Some(mm_to_scale_factor(self.scale, size)),
+                ..Default::default()
+            },
+        );
+
+        Ok(())
+    }
+}
+
+#[derive(Debug)]
+pub struct Code128Config {
+    scale: (Mm, Mm),
+    position: (Mm, Mm),
+}
+
+impl Code128Config {
+    fn draw<S: Into<String>>(&self, layer: &PdfLayerReference, id: Option<S>) -> Result<()> {
+        let image = encode_code128(
+            id.ok_or(Error::DataIncomplete("short ID".to_string()))?
+                .into(),
+        )?;
+
+        let width = image.image.width;
+
+        image.add_to_layer(
+            layer.clone(),
+            ImageTransform {
+                translate_x: Some(self.position.0),
+                translate_y: Some(self.position.1),
+                scale_x: Some(mm_to_scale_factor(self.scale.0, width)),
+                scale_y: Some(mm_to_scale_factor(self.scale.1, Px(1))),
+                ..Default::default()
+            },
+        );
+
+        Ok(())
+    }
+}
+
+#[derive(Debug)]
+pub struct IdTextConfig {
+    font_size: f32,
+    position: (Mm, Mm),
+}
+
+impl IdTextConfig {
+    fn draw<S: Into<String>>(
+        &self,
+        layer: &PdfLayerReference,
+        font: &IndirectFontRef,
+        text: Option<S>,
+    ) -> Result<()> {
+        layer.use_text(
+            text.ok_or(Error::DataIncomplete("ID text".to_string()))?,
+            self.font_size,
+            self.position.0,
+            self.position.1,
+            font,
+        );
+        Ok(())
+    }
+}
+
+#[derive(Debug)]
+pub struct LabelPage {
+    pub id: Option<Uuid>,
+    pub short_id: Option<String>,
+}
+
+impl LabelPage {
+    fn draw(
+        &self,
+        config: &LabelConfig,
+        layer: &PdfLayerReference,
+        font: &IndirectFontRef,
+    ) -> Result<()> {
+        if let Some(cfg) = &config.data_matrix {
+            cfg.draw(layer, self.id)?;
+        }
+        if let Some(cfg) = &config.code128 {
+            cfg.draw(layer, self.short_id.as_ref())?;
+        }
+
+        if let Some(cfg) = &config.id_text {
+            cfg.draw(layer, font, self.id)?;
+        }
+        if let Some(cfg) = &config.short_id_text {
+            cfg.draw(layer, font, self.short_id.as_ref())?;
+        }
+
+        Ok(())
+    }
+}
+
+#[derive(Debug)]
+pub struct Label {
+    pub pages: Vec<LabelPage>,
+    pub config: LabelConfig,
+}
+
+impl Label {
+    pub fn generate(&self) -> Result<Vec<u8>> {
+        let mut doc: Option<PdfDocumentReference> = None;
+        let mut font: Option<IndirectFontRef> = None;
+
+        for label in &self.pages {
+            let page;
+            let layer;
+
+            let name: String = label
+                .id
+                .map(String::from)
+                .or(label.short_id.clone())
+                .unwrap_or("empty".into());
+
+            if let Some(ref doc) = &doc {
+                (page, layer) = doc.add_page(self.config.width, self.config.height, name);
+            } else {
+                let (new_doc, page1, layer1) =
+                    PdfDocument::new("li7y labels", self.config.width, self.config.height, name);
+                // TODO: do not hardcode font
+                // counter-argument: the presets rely on its spacing
+                // but at least it should be somehow included (or at least documented)
+                font =
+                    Some(new_doc.add_external_font(File::open(get_font_path(
+                        "IosevkaSbruder Nerd Font",
+                    ))?)?);
+
+                doc = Some(new_doc);
+                page = page1;
+                layer = layer1;
+            }
+
+            let doc = doc.as_ref().unwrap();
+            let font = font.as_ref().unwrap();
+
+            let layer_ref = doc.get_page(page).get_layer(layer);
+
+            label.draw(&self.config, &layer_ref, font)?
+        }
+
+        Ok(doc.ok_or(Error::NoPages)?.save_to_bytes()?)
+    }
+}
diff --git a/src/label/preset.rs b/src/label/preset.rs
new file mode 100644
index 0000000..46a219d
--- /dev/null
+++ b/src/label/preset.rs
@@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: 2024 Simon Bruder <simon@sbruder.de>
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+use printpdf::Mm;
+use serde::Deserialize;
+
+use super::{Code128Config, DataMatrixConfig, IdTextConfig, LabelConfig};
+
+#[derive(Clone, Debug, Deserialize)]
+#[serde(rename_all = "kebab-case")]
+pub enum LabelPreset {
+    SeikoSlpMrlDataMatrix,
+    SeikoSlpMrlCode128,
+    SeikoSlpMrl,
+}
+
+#[allow(clippy::from_over_into)]
+impl Into<LabelConfig> for LabelPreset {
+    fn into(self) -> LabelConfig {
+        match self {
+            Self::SeikoSlpMrlDataMatrix => LabelConfig {
+                width: Mm(44.45),
+                height: Mm(24.13),
+                data_matrix: Some(DataMatrixConfig {
+                    scale: Mm(20.0),
+                    position: (Mm(0.0), Mm(0.0)),
+                }),
+                code128: None,
+                id_text: Some(IdTextConfig {
+                    font_size: 7.0,
+                    position: (Mm(0.0), Mm(22.0)),
+                }),
+                short_id_text: None,
+            },
+            Self::SeikoSlpMrlCode128 => LabelConfig {
+                width: Mm(44.45),
+                height: Mm(24.13),
+                data_matrix: None,
+                code128: Some(Code128Config {
+                    scale: (Mm(44.45), Mm(19.0)),
+                    position: (Mm(0.0), Mm(2.5)),
+                }),
+                id_text: Some(IdTextConfig {
+                    font_size: 7.0,
+                    position: (Mm(0.0), Mm(22.0)),
+                }),
+                short_id_text: Some(IdTextConfig {
+                    font_size: 7.0,
+                    position: (Mm(0.0), Mm(0.0)),
+                }),
+            },
+            Self::SeikoSlpMrl => LabelConfig {
+                width: Mm(44.45),
+                height: Mm(24.13),
+                data_matrix: Some(DataMatrixConfig {
+                    scale: Mm(16.0),
+                    position: (Mm(0.0), Mm(4.0)),
+                }),
+                code128: Some(Code128Config {
+                    scale: (Mm(27.45), Mm(16.0)),
+                    position: (Mm(17.0), Mm(4.0)),
+                }),
+                id_text: Some(IdTextConfig {
+                    font_size: 7.0,
+                    position: (Mm(0.0), Mm(22.0)),
+                }),
+                short_id_text: Some(IdTextConfig {
+                    font_size: 7.0,
+                    position: (Mm(17.0), Mm(0.0)),
+                }),
+            },
+        }
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index 1f834a9..cec0a00 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,6 +4,7 @@
 
 pub mod api;
 pub mod frontend;
+pub mod label;
 pub mod manage;
 pub mod models;
 pub mod schema;