What's new 2026

What’s New in Aspose.PDF 26.3

Most Significant Changes

In Aspose.PDF 26.3, we have added:

  • Lossless image stream recompression during PDF optimization. The OptimizationOptions.CompressAllContentStreams property now also compresses eligible image XObject streams with FlateDecode, helping reduce file size while keeping image quality intact.

  • Image recompression now matches the selected ImageCompressionOptions.Encoding setting during optimization, ensuring more consistent results when using Jpeg2000 or Flate, along with image resizing, resolution limits, and quality controls.

  • Support for rendering comments when saving PDF documents as images or HTML, helping to preserve visible review markup when exporting annotated documents for sharing outside PDF viewers.

  • Improved PDF-to-TIFF rendering performance for high-volume rasterization scenarios, especially when exporting pages to bitonal TIFF images.

Detailed information about the changes and usage examples can be found on the Aspose.PDF 26.3 Release Notes page.

Other Notable Enhancements

  • Reduced memory usage for the RemoveUnusedStreams optimization scenario (PDFNET-40691).

Backward Incompatible Changes

  • The compatibility package Aspose.PDF for .NET Framework 4.0 (DLLs only) is no longer published starting with Aspose.PDF for .NET 26.3.

  • Image recompression now follows the selected ImageCompressionOptions.Encoding value during optimization. This makes results more predictable when using Jpeg2000 or Flate together with image resizing, resolution limits, and quality settings.

  • Support for rendering comments when saving PDF documents as image or HTML. This helps preserve visible review markup when exporting annotated documents for sharing outside PDF viewers.

  • Improved PDF-to-TIFF rendering performance for high-volume rasterization scenarios, especially when exporting pages to bitonal TIFF images.

Detailed information about the changes and usage examples can be found on the Aspose.PDF 26.3 Release Notes page.

Other Notable Enhancements

  • Reduced memory usage for the RemoveUnusedStreams optimization scenario (PDFNET-40691).

Backward Incompatible Changes

  • The compatibility package Aspose.PDF for .NET Framework 4.0 (DLLs only) is no longer published beginning with Aspose.PDF for .NET 26.3.

What’s New in Aspose.PDF 26.2

Most Significant Changes

In Aspose.PDF 26.2, we have added:

  • RTF to PDF Conversion – Direct conversion of Rich Text Format (RTF) files to PDF format. RTF is a widely compatible, cross‑platform file format developed by Microsoft to enable easy document sharing between different word processors. It supports basic text formatting such as fonts, colors, bold, and italics, as well as images.

The conversion can be achieved by using the RtfLoadOptions class.

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ConvertRtfToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_DocumentConversion();

    // Initialize RTF load options
    var options = new Aspose.Pdf.RtfLoadOptions();

    // Open RTF document
    using (var document = new Aspose.Pdf.Document(dataDir + "ConvertRtfToPdf.rtf", options))
    {
        // Save the document as PDF
        document.Save(dataDir + "ConvertRtfToPdf_out.pdf");
    }
}

  • Table Placement After Last Page Element – Added ability to add tables precisely after the last content element on a page. By using the Page.CalculateContentBBox() method to determine the bounding box of existing content, developers can calculate the exact position where the last element ends and place tables immediately after it. When table data exceeds the available space on the current page, the table will automatically flow to the next page starting from the top.

  • Complete Deletion of Invisible Text Objects – Added support for complete deletion of invisible text objects from PDF documents. The TextFragmentAbsorber class can now properly identify and remove text fragments that have their TextState.Invisible property set to true, or have a RenderingMode of TextRenderingMode.Invisible, or have a foreground color with zero alpha channel.

Detailed information about the changes and usage examples can be found on the Aspose.PDF 26.2 Release Notes page.

What’s New in Aspose.PDF 26.1

In Aspose.PDF 26.1, we have added:

  • Performance improvements – resolved poor performance when adding text to documents (PDFNET-34609) and overall performance issues (PDFNET-58899).

  • Enhanced rendering accuracy – fixed missing vertical text on the left side of PDFs (PDFNET-38618) and corrected Chinese character rendering during PDF-to-PNG conversion (PDFNET-58950).

  • Improved HTML conversion – the API now respects line color in HTML-to-PDF conversion (PDFNET-38417) and fixed text overlap issues in XFA-to-Standard conversion (PDFNET-38458).

  • Bug fixes for document structure – NumberingStyle now works correctly for Heading objects (PDFNET-38421), and PDF-to-HTML now preserves highlighted text color (PDFNET-50941).

Detailed information about the changes and usage samples is available on the Aspose.PDF 26.1 Release Notes page.

What's new 2024