The new version PDiff 3.9 has been released. New features in this release of the text-based PDF comparison solution are among others:

  • NEW (macOS): Significantly improved performance by migrating the PDF renderer from Intel (x86_64) to the native ARM architecture (arm64)
  • NEW: Added the disable tagged PDF flag as factory setting under Settings > PDF > Text Extraction Flags
  • NEW: Optimized text extraction for Thai script
  • Fix: The preserve_spaces text extraction setting now correctly preserves standalone spaces when used together with detect_word_ends (default), eliminating the need for the do_not_combine_touching_words flag
  • Fix: Improved merging of adjacent PDF words separated by slashes at line breaks and in cases of negative quad overlaps
Version 3.8.3:
  • NEW (Add-On Images): Under Settings > Images > Resolution, you can set higher accuracy for image comparison, especially for fine image structures (e.g., hairlines)
  • Fix: The report formats Annotated PDF A and Annotated PDF B caused pixelated reports instead of more compact vector-based reports when the input files were tagged PDFs
  • Fix: Positioning of vector images in PDFs with a shifted CropBox
  • Fix: Correction for loading very large PDF files (increased size limit of the Xref table)
Version 3.8.2:
  • NEW (Add-On Images): New button in the toolbar to manually define image areas

PDiff shows you quickly and reliably all text differences between two PDF documents – as a comparison of the two PDFs and with markings of the deviations. So you can check intended revisions quickly and find unintended changes at first glance.

PDiff easily outperforms document comparison with the naked eye in terms of speed and precision: a human reader achieves an average reading performance of 200 words per minute with an error detection rate of 75%. On the other hand, PDiff manages about 400000 words per minute – that’s 2000 times faster – and above all it works tirelessly with 100% accuracy.

Applications of PDiff are among others: legal documents and contracts, pharmaceutical packaging and medical leaflets, important business documents, technical manuals, financial reports, manuscripts, book texts as well as price lists and catalogs.

PDiff is available as 64-bit version for Windows and macOS. Both versions are based on the proven Adobe® PDF Library™. Business customers can request a free trial at https://www.csci.de/en/pdiff/trial.