Released: Feb 1, 2026

Atualizações na PDF4NET V16.1.2

Recursos

PDF4NET

• Added support for page transparency group.
• PDF/A-1 validation now checks the presence of page transparency group.

PDF4NET.View

• Memory usage improvements.

Correções

PDF4NET

• Colorspaces are not extracted from PDF file.
• Some existing PDF files are resaved incorrectly.

PDF4NET.Render

• Some text is not displayed because the backing TrueType font is invalid.
• Page with invalid font cannot be rendered, throws stack overflow exception.
• Text is not rendered correctly, characters are...

Released: Feb 1, 2026

Atualizações na PDFView4NET Windows Forms Edition V11.3.27

Correções

PDF Rendering:

• Some text is not displayed because clip paths spread across q/Q boundaries.

PDF Viewer:

• Some text is not displayed because clip paths spread across q/Q boundaries.

Released: Jan 5, 2026

Atualizações na PDF4NET V16.1.1

Recursos

PDF4NET

• PDFTextExtractionOptions has been renamed PDFTextExtractionContext.
• PDFContentExtractionContext.TextExtractionOptions has been renamed PDFContentExtractionContext.TextExtractionContext.

Correções

PDF4NET

• Field border definition is generated even if it is not stroked.
• An exception is thrown when a multiline textbox field does not have a size and a color is set on it.
• Some existing PDF files are resaved incorrectly.
• Some incremental updates are not performed correctly.

PDF4NET...

Released: Jan 5, 2026

Atualizações na PDFView4NET Windows Forms Edition V11.3.26

Correções

PDF Rendering

• Damaged file could not be loaded.
• Thin lines were rendered very faint at high resolution.

PDF Viewer

• Damaged file could not be loaded.
• Thin lines were rendered very faint at high resolution.

Released: Dec 2, 2025

Atualizações na PDFView4NET Windows Forms Edition V11.3.25

Correções

PDF Rendering:

• Damaged file cannot be loaded.
• Some text is not rendered correctly.

PDF Viewer:

• Damaged file cannot be loaded.
• Some text is not rendered correctly.

Released: Dec 2, 2025

Atualizações na PDF4NET V16.1.0

Recursos

• Added support to retrieve contextual information when searching text in PDF files.
• Information about physical location of COS objects in the PDF file is now available in the public API.

PDF4NET.Render

• Memory usage optimizations.

PDF4NET.View

• Added support for incremental loading of PDF files.
• WinForms - Added support for custom drawing in the viewer area.

Correções

• Behavior change: An exception is thrown if redaction overlay cannot be drawn because the page graphics has been closed...

Released: Nov 5, 2025

Atualizações na PDF4NET V16.0.0

Recursos

PDF4NET

• Updated calculation of text fragment run when font specifies invalid Ascent/Descent values.

PDF4NET.View

• Added a new viewer module.
• Added PDF viewer control for Windows Forms.
• Added PDF viewer control for Windows Presentation Foundation (WPF).

Correções

PDF4NET

• PDF file could not be saved because of circular reference in form Xobjects.
• Pages with unknown fields could not be extracted from PDF files.
• Time stamp signatures were not loaded for signed fields.
• Some ligature glyphs...

Released: Nov 5, 2025

Atualizações na PDFView4NET Windows Forms Edition V11.3.24

Correções

PDF Rendering:

• Quadrifoglio - Mask surface was not extracted correctly.
• Some shadings were displayed black.
• Some PDF files could not be displayed because the fonts use too much memory.

PDF Viewer:

• Quadrifoglio - Mask surface was not extracted correctly.
• Some shadings were displayed black.
• Some PDF files could not be displayed because the fonts use too much memory.

Released: Oct 1, 2025

Atualizações na PDFView4NET Windows Forms Edition V11.3.23

Correções

PDF Rendering:

• Some encrypted PDF files could not be loaded.

PDF Viewer:

• Some encrypted PDF files could not be loaded.

Released: Oct 1, 2025

Atualizações na PDF4NET 15.1.0

Recursos

PDF4NET

• Added text horizontal scaling, for easier implementations of OCR to searchable PDF solutions.
• Added long words wrapping in formatted content.
• Now specify the page size when the page is created.

Correções

PDF4NET

• Words were not extracted correctly from PDF file.
• Page was not extracted correctly from incorrect PDF file.
• Page could not be extracted from documents with invalid fields.
• Documents could not be signed if the certificate included multiple CRL URLs.
• Some PDF pages could...