https://sourceforge.net/projects/clown/ mirror
- Pdf visualization by SkiaSharp.
- UI integration by Xamarin.Forms.
- Rendering Pdf on Xamarin.Forms 'SkiaSharp.SKCanvas'
- Basic painting reguired just replace System.Drawing by SkiaSharp, thanks to author Stefano Chizzolini
- New mandatory features of SkiaSharp(for Tiling, Image Mask, Gradient and Patch shaders) by mattleibow
- XObject Masking by wrappa
- Change Code formatting
- Rendering Annotations(except 3D)
- Move project to .net standard 2.0
- Several Xamarin.Forms frontends (Android, iOS, UWP and WPF)
- Performance improvements
- Strings comparison
- Suppress reflections invocation
- DOM cache
- Fonts and Encryption by integrate Apache PdfBox Project from mirror.
- Source code translated from java to C#
- Full Fonts processing & text rendering engine
- CCITTFax and other fixes of Images loading engine
- Decrypt PDF
- LZWFilter
- Images and ColorSpaces by integrate Mozilla Pdf.js
- Source code translated from js to C#
- JPX, CCITTFax, JBIG2 - decoding
- Function Type 0
- Rendering
- Move from SKPicture to to SKImage with rescan on each scale change, without in-memory bitmaps caching(maybe file cache or redecoding)
- Possible GL context with SKImage
- Decoding optimization
- Encryption.
- Encrypt not tested
- Public key Certificat - requer completly rework PdfBox solution
- Function type 4 (PdfBox or Pdf.js)
- Patch Shaders (PdfBox or Pdf.js)
- Move buffered IO to use Span<byte>
- Check regressions on PDF creation(fonts embeding, text postions, cache collision).