Handle documents with mismatched font Subtype and FontFile type when exporting PDF to image with SkiaImageFormatProvider.

Import-export changes the color of the shading object.

This error happens when importing a document.

Wrong clipping order when exporting a document with MarkedContent leads to a missing content.

Add support for "AcroSendMail:SendMail" named action.

Such a document can be considered as invalid. However, it would be good to provide functionality to handle it.  

Part 3 of the standard, published on October 15, 2012, differs from PDF/A-2 in only one regard: it allows embedding of arbitrary file formats (such as XML, CSV, CAD, word-processing documents, spreadsheet documents, and others) into PDF/A conforming documents.

Purpose: Long-term archiving of electronic documents with full semantic structure.

• "A" for Archiving

• Level "1a" ensures:

  • Tagged PDF (with proper logical structure and reading order)

  • Unicode text for proper text extraction and searchability

  • Embedded fonts (for consistent rendering)

• Restrictions:

  • No audio/video

  • No encryption

  • No JavaScript

  • No external content (everything must be self-contained)

• Based on: PDF 1.4 (Acrobat 5)

PdfProcessing: ArgumentException is thrown when importing a document with a duplicated filed names.

Wrong font loading when FontFile2 is CFF (Compact Font Format).

Implement functionality to support scenario when a document which already has a signature to be signed again or add two or more signatures.

ArgumentOutOfRangeException is thrown when creating a CapPathRound for an SVG element.

Exporting a specific PDF file generates large amounts of ExtGState entries, which results in large file sizes.

Example: 
 

Handle the import of documents with Associated Files (/AF) elements whose content is set to null.

Handle the import of documents with null elements in the Associated Files (/AF) collection.

This is not a valid scenario, but Adobe Acrobat handles it and we should too. 

InvalidCastException is thrown when importing a document with an annotation declared in the Fields collection.

Introduce support for UnShrinking - Method 1.

This type of action is currently not supported and a NotSupportedActionException is thrown when accessing such an object.

These exceptions can be handled using the Handling Exceptions mechanism.