The git changes introduce functionality to merge attachments from a processed ZIP archive into a single PDF file. Here is a summary of the changes: ### New Features - PDF Merging: Added the ability to merge multiple attachments (PDFs and images) from a processed ZIP archive into a single PDF document. - Image Conversion: Implemented automatic conversion of non-PNG images (like JPGs) to PNG format before embedding them into the merged PDF. ### File Changes - Dependencies: Added pdf-lib to the project's dependencies. - src/lib/zip-processing.ts:

- Added mergeProcessedZipArchive to handle the core logic of creating a merged PDF.                         - Implemented helpers to embed PDF pages and convert/embed images.     - Added toArrayBuffer and convertImageBytesToPng utilities for handling binary data and canvas-based image processing.
     - src/lib/components/ProcessedZipArchiveEditor.svelte:
 - Added a "PDF herunterladen" (Download PDF) button.              - Added UI states to handle the merging process (loading state, error messages).
     - Integrated the mergeProcessedZipArchive function with the UI.
      - src/lib/components/AttachmentPreview.svelte:
 - Added a fix to ensure attachment.data is treated as a Uint8Array when loading PDF documents.

pnpm-lock.yaml

@@ -17,6 +17,9 @@ importers:
       fflate:
         specifier: ^0.8.3
         version: 0.8.3
+      pdf-lib:
+        specifier: ^1.17.1
+        version: 1.17.1
       pdfjs-dist:
         specifier: ^6.0.227
         version: 6.0.227
@@ -187,6 +190,12 @@ packages:
   '@oxc-project/types@0.133.0':
     resolution: {integrity: sha512-KzkdCd6Uxqnf6l3HOw1xfatAlUURA0g14cvBYFyJ5SaNOQbOUvBr9PKArcPcrNIeRsBdgcUzOGrhKveVpvOIGA==}
 
+  '@pdf-lib/standard-fonts@1.0.0':
+    resolution: {integrity: sha512-hU30BK9IUN/su0Mn9VdlVKsWBS6GyhVfqjwl1FjZN4TxP6cCw0jP2w7V3Hf5uX7M0AZJ16vey9yE0ny7Sa59ZA==}
+
+  '@pdf-lib/upng@1.0.1':
+    resolution: {integrity: sha512-dQK2FUMQtowVP00mtIksrlZhdFXQZPC+taih1q4CvPZ5vqdxR/LKBaFg0oAfzd1GlHZXXSPdQfzQnt+ViGvEIQ==}
+
   '@polka/url@1.0.0-next.29':
     resolution: {integrity: sha512-wwQAWhWSuHaag8c4q/KN/vCoeOJYshAIvMQwD4GpSb3OiZklFfvAgmj0VCBBImRpuF/aFgIRzllXlVX93Jevww==}
 
@@ -798,6 +807,12 @@ packages:
     resolution: {integrity: sha512-AWGB9WFcRXOQs48Z/udjI5ZcZMHXwX8XPByNpOydgcGsDLIzjGizhoMWJyKAWze7AVW/2W1i+/gPX4YtKe5cyg==}
     engines: {node: '>=12.20.0'}
 
+  pako@1.0.11:
+    resolution: {integrity: sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==}
+
+  pdf-lib@1.17.1:
+    resolution: {integrity: sha512-V/mpyJAoTsN4cnP31vc0wfNA1+p20evqqnap0KLoRUN0Yk/p3wN52DOEsL4oBFcLdb76hlpKPtzJIgo67j/XLw==}
+
   pdfjs-dist@6.0.227:
     resolution: {integrity: sha512-/P6M4SXw+70waMVLUM7rdRtvo+dEzqE1t6W/zQNvBETo2MaRa5rrvCcAYdfWGiUzadTgM0lJmRApUrW0d9zgKg==}
     engines: {node: '>=22.13.0 || >=24'}
@@ -938,6 +953,9 @@ packages:
     resolution: {integrity: sha512-sf4i37nQ2LBx4m3wB74y+ubopq6W/dIzXg0FDGjsYnZHVa1Da8FH853wlL2gtUhg+xJXjfk3kUZS3BRoQeoQBQ==}
     engines: {node: '>=6'}
 
+  tslib@1.14.1:
+    resolution: {integrity: sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==}
+
   tslib@2.8.1:
     resolution: {integrity: sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==}
 
@@ -1112,6 +1130,14 @@ snapshots:
 
   '@oxc-project/types@0.133.0': {}
 
+  '@pdf-lib/standard-fonts@1.0.0':
+    dependencies:
+      pako: 1.0.11
+
+  '@pdf-lib/upng@1.0.1':
+    dependencies:
+      pako: 1.0.11
+
   '@polka/url@1.0.0-next.29': {}
 
   '@rolldown/binding-android-arm64@1.0.3':
@@ -1786,6 +1812,15 @@ snapshots:
 
   obug@2.1.2: {}
 
+  pako@1.0.11: {}
+
+  pdf-lib@1.17.1:
+    dependencies:
+      '@pdf-lib/standard-fonts': 1.0.0
+      '@pdf-lib/upng': 1.0.1
+      pako: 1.0.11
+      tslib: 1.14.1
+
   pdfjs-dist@6.0.227:
     optionalDependencies:
       '@napi-rs/canvas': 1.0.0
@@ -1902,6 +1937,8 @@ snapshots:
 
   totalist@3.0.1: {}
 
+  tslib@1.14.1: {}
+
   tslib@2.8.1: {}
 
   typescript@6.0.3: {}