Released: Sep 12, 2025

V25.9 での更新項目

機能

• Introduced support for the PDF/E-1 standard, a format specifically designed for engineering documentation. This enhancement allows developers to convert standard PDF files into PDF/E-1 compliant documents, ensuring they meet the specific requirements for technical and engineering workflows. This feature also includes the ability to validate the resulting files against the PDF/E-1 standard.
• To improve support for creating accessible documents, Aspose.PDF for .NET now provides a straightforward way to add alternative text to images loaded from a stream. This enhancement is essential for creating PDF/UA-compliant files when images are handled in memory rather than from a file path. You can now add an image from a stream and then use the TrySetAlternativeText method to assign the necessary accessibility text.
• Added support for memory-efficient PDF merging for disk-based page writing with object offset tracking.

不具合の修正

• Converting PDF to SVG get wrong result with Aspose.Pdf.Drawing.
• Document.Validate() method consumes a lot of memory.
• PDF not printing in Landscape mode.
• PDF to PDFA - resultant PDFA reports error on printing.
• PDF/A-3b Verification Error - CIDset in subset font is incomplete.
• System.NotImplementedException - "Not supported image type" thrown on call Document.OptimizeResources with Aspose.Pdf.Drawing.
• Color is different when printing PDF from Aspose.PDF and Adobe Reader.
• Using FontReplace.RemoveUnusedFonts causes used fonts to no longer be embedded in PDF/A.
• Conversion from HTML to PDF is failing.
• PDF to DOC/DOCX - Bullets in output document are not being recognized by MS Word.
• PDF to DOCX - Images are flipped in resultant Word document.
• PDF to HTML - resultant image contains background.
• PDF to PNG results incorrect image rendering.
• PDF to XPS - resultant file is 7 times in size.
• Save call is stuck while adding HTML Fragment.
• HTML to PDF - Control contents appear as wrapped.
• HTML to PDF - Gantt chart is not properly rendering.
• HTML to PDF - Left Padding is not honored for OL/UL tags.
• HTML to PDF - Some Chinese characters appear as box.
• HTML to PDF - Base64 custom font is not honored.
• HTML to PDF - Duplicated data in output file.
• HTML to PDF - Special characters are not being rendered.
• Issues when converting PDF to HTML.
• MHT to PDF - Image is absent.
• PdfExtractor.ExtractText() throws System.ArgumentException exception.
• HTML to PDF - Radio buttons position issue.
• HTML to PDF - Form field CSS is not being applied.
• HTML to PDF - extra space between contents.
• HTML to PDF - Incorrect generated PDF.
• HTML to PDF - the text phrase is not visible.
• Regression - BindPdf throws NullReferenceException.
• Converting PDF -> APS makes the image transparent.
• Empty FileName in the document object for some cases.
• Major performance issue in latest Aspose PDF version 25.06 compared to version 24.02.
• PdfToMarkdownTests.ConvertDocumentToStreamTest - Resource folder is created in working directory, not in a directory of MD file.
• Annotation decoration not applied when importing XFDF.
• Annotations are not exported correctly.
• ArgumentOutOfRangeException when using pdfFileEditor.Concatenate on specific PDF Files.
• Creation Date does not set to actual date/time when the MarkupAnnotation is created.
• PDF to PDF/A_3b - Text formatting issues and pictures get scaled.
• Tagged PDFs - Image insert from stream with alt text.
• Background strip in footer is incompletely rendered when converting PDF to HTML.
• TableAbsorber.Visit(Document PDF) throws System.NullReferenceException.
• PDF document bookmark color not updating.
• DefaultStyle color is not applied to FreeText annotation lines when imported from XFDF.