Aspose.HTML for Python via .NET Releases
Released: Apr 26, 2026
Updates in V26.4
Features
- Added support for named @page rules with mixed page sizes in the generated output.
- Improved tagged PDF generation for nested and definition lists, ensuring correct structure tree mapping and accessibility semantics.
- Enhanced Flex layout handling and standards compliance for complex sizing and alignment scenarios.
Fixes
- Fixed an ArgumentException that could occur when processing auto values during HTML layout.
- Fixed PDF rendering problems when drawing complex borders and paths.
- Fixed...
Released: Mar 20, 2026
Updates in V26.3
Features
- MHTML - Added the ability to select and render specific attachments.
Fixes
- MHT to PDF - Embedded images are missing in the output.
- HTML-to-Tagged-PDF - Definition lists incorrectly mapped to L/LI structure elements — PDF/UA "inappropriate LI" warning (v26.x).
Released: Feb 27, 2026
Updates in V26.2
Fixes
- HTML to PDF: Table max-width property is not applied correctly.
- Fixed specifying page size settings so that they have no effect on the content max width/max height.
- Error in ValidateWebsiteTest.
- Incorrect document encoding detection.
- Exception when converting EPUB to PDF.
- Font information gets lost for unicode characters when converting from HTML to DOCX.
- Aspose is unable to convert large HTML file to PDF.
Released: Jan 29, 2026
Updates in V26.1
Fixes
- HTML to PDF: High Memory and CPU usage.
- HTML to Image (Single Image).
- Exception is thrown when trying to convert particular HTML to DOCX.
- Table row splitting between pages when converting HTML to PDF.
- HTML to PDF conversion runaway memory usage.
- XHTML to PDF conversion issues.
Released: Dec 22, 2025
Updates in V25.12
Features
- Implemented a CSS Grid layout
- Full implementation of the CSS Grid Layout algorithm, compliant with the CSS Grid Layout Level 1 specification.
- Support for core properties: grid, grid-template-, grid-auto-, grid-row*, grid-column*, grid-area, and gap*.
- Advanced capabilities: explicit and implicit grid resolution, along with auto-placement logic.
- API Expansion: Introduction of asynchronous methods to the public API.
- Layout Property Updates: The align-, justify-, and place-* properties have...
Released: Nov 28, 2025
Updates in V25.11
Features
- Implemented a new SVG rendering algorithm that displays only visible elements on each page, eliminating glitches, dramatically reducing processing time, memory consumption, and the size of the output PDF file.
Fixes
Released: Nov 12, 2025
Updates in V25.10
Features
- Improved FORM element handling:
- Reduced memory usage and faster loading of large HTML documents.
- Optimized Arabic font processing.
- Introduced support for the DPCM CSS unit.
Fixes
- HTML to PDF: Styles are not applied in PDF output.
- MHT to PDF - exception -System.NullReferenceException.
Released: Sep 26, 2025
Updates in V25.9
Features
- Advanced Text and Symbol Rendering - The processing and rendering of complex text content have been significantly improved:
- SVG Text Decorations: Extended support for text decorations in SVG, specifically adding the line-through property.
- Extended Unicode Support: Improved handling of emojis and characters from extended Unicode range (≥ 0x10000) through:
- Implementation of format 12 sub-table support in font CMAP tables.
- Enhanced parsing of HTML numeric character references beyond 16-bit...
Released: Aug 27, 2025
Updates in V25.8
Features
- Memory Efficiency: Significantly optimized memory usage for operations involving pseudo-element style processing and general HTML element rendering. This reduces the overall memory footprint of the application.
- Document Loading: Memory consumption when opening and loading HTML documents has been reduced.
- Network Operations: The processing of network requests and the handling of StreamContent have been optimized for better efficiency and reliability.
- SVG Text: Improved the fidelity of...
Released: Jul 23, 2025
Updates in V25.7
Fixes
- MHTML input results in unreadable PDF output.
- When trying to save a file as PDF you get a NullReferenceException.
- Fails when recognizing the installed Helvetica Neue LT Std font and throws a NullReferenceException.
- System.NullReferenceException: Object reference not set to an instance of an object.
- Unable to convert a web-page content to PDF - System.ArgumentException: Incompatible unit types.