Some test text!


Version 7.0 Changelog (2019-07-25)

linkNew Features

  • CAD conversion module and API (Convert.FromCad)
  • OCR module and API (OCRModule class)
  • Updated API for Digital Signature creation (DigitalSignatureField and DigitalSignatureIterator classes).
  • Programmatic, low-level Undo/Redo API. (UndoManager, ResultSnapshot and DocSnapshot classes)
  • Added an in-memory interface for rendering individual separations. (PDFDraw.GetSeparationBitmapsand PDFRasterizer.RasterizeSeparations).
  • Added extra modes to geometry snapping: snap to point on line, snap to midpoint, and snap to line intersection.
  • Added Widget functions to Set/Get Text Color, Font and Font Size.
  • New Widget API for form field creation/access. (TextWidget, CheckBoxWidget, RadioButtonWidget, RadioButtonGroup, PushButtonWidget, SignatureWidget, ListBoxWidget and ComboBoxWidget classes).
  • Added an API allowing sound annotations to be created from raw sound data. (Sound.CreateWithData).
  • New method for easily rotating an annotations appearance by an arbitrary angle.

linkChanged Behavior:

  • ToXod default options have been changed. The XOD default setting for flattening is now e_high_quality (previously e_fast) and the default setting for line thickening is false. (previously true).
  • The HTML2PDF module is now included as part of desktop release packages.
  • Unused ConnectToCloud API was removed.
  • The GDI+ Rasterizer has been marked as deprecated and will be removed in a future version of PDFNet.

linkOther Changes

Roughly categorized, not an exhaustive list.


  • [pdf] Improved error handling when processing JPEG 2000 files.
  • [pdf] Handle separation names that are not valid Unicode.
  • [pdf] Better recover from errors in initial document loading when JavaScript is enabled.
  • [pdf] Fixed a problem where particular JBig2 files could not be completely read.
  • [pdf] Better handle corrupt documents consisting of two PDFs stitched together.
  • [pdf] More robust handling of temp files and directories with unexpected permissions.
  • [xod] Now limit the number of pattern usages before flattening will occur. This is needed to avoid frequently used simple patterns from making very complicated output files.
  • [pdf] Updated ElementWriter to better support editing of any existing PDF file when used in conjunction with ElementReader. (ElementWriter.SetDefaultGState and updated ElementWriter.Begin).


  • [pdf] Updated XFDF import to support importing Form Fields, Links and File Attachments.
  • [pdf] Output the “All” separation when in separation export mode.
  • [xod] Added elements to XOD files to support faux bold (stroked and filled text).
  • [pdf] Added better handling for zero-area filled paths.
  • [pdf] Improved redaction annotation rendering to support custom attributes used in Acrobat.
  • [pdf] Support encrypting files with no user password using AES 256.
  • [pdf] Adjusted RefreshAppearance for Radio Buttons to produce output similar to other PDF viewers.
  • [xod] Adjusted logic so if flattening is not disabled that pages with Knockout or Isolated Transparency groups are flattened.
  • [pdf] Updated logic so that the level passed to PDFNet.SetDefaultFlateCompressionLevel() will be respected even for image compression. (where the maximum compression setting would generally be used).
  • [pdf] Added support for soft masks in PNG and TIFF image export.
  • [pdf] Added a dropdown indicator for combo boxes.
  • [pdf] Now automatically support arbitrary rotations of rubberstamp annotations.


  • [pdf] More efficient handling of empty transparency groups.
  • [pdf] Improved performance of SetDoc in PDFview by asynchronously reading page info.
  • [pdf] Lowered memory usage when incrementally saving to stream.
  • [pdf] Optimized reading from a file that has been edited.
  • [pdf] Optimized parsing of PDF documents with large amounts of whitespace.


  • [pdf] Fixed a bug where IsModified can return true after a save when undo redo is used.
  • [pdf] Fixed bug where we would fail to save to documents with malformed “Rights enable” dictionaries.
  • [pdf] Fixed a bug where we would sometimes mishandle softmasks smaller than their containing group.
  • [pdf] Fixed bug where disabling annotation rendering in the viewer would not disable it in thumbnails.
  • [pdf] Fix bug in .Net wrapper where exceptions thrown in the PDFDoc constructor could crash.


  • [xlsx] Added support for "sparkline" charts in xlsx files.
  • [xlsx] Added support for the NPER (number of periods) financial function.
  • [docx] Now correctly display change-tracked content.
  • [xlsx] Now correctly display drawings in sheets that are outside the table bounds.
  • [docx] Better support for text frame elements in .docx files.
  • [xlsx] Added support for inline strings within table cells.
  • [xlsx] Improved behaviour when text within a cell exceeds the horizontal cell bounds.
  • [docx] Improved positioning of some forms of rotated images.
  • [xlsx] Improved positioning of some forms of rotated images.
  • [pptx] Slightly improved handling of text effects.
  • [xlsx] Improved positioning category axis legends.
  • [docx/pptx] More robust handling of symbol encoded text runs.
  • [office] Better handling of oddly named fonts, where the style is part of the name.
  • [docx] no longer apply highlights to text runs consisting only of whitespace.
  • [docx] Fix bug where we could occasionally miss list styles on deeply nested bullet lists.

Get the answers you need: Support


Free Trial

Get unlimited trial usage of PDFTron SDK to bring accurate, reliable, and fast document processing capabilities to any application or workflow.

Select a platform to get started with your free trial.

Unlimited usage. No email address required.

Join our upcoming webinar to learn about how to collaborate on videos frame by frame directly in your browser

Save your seat