PDFTron WebViewer - View, Annotate and Edit PDF, DOCX, Image


  • View & Search on PDF, DOCX, XLSX, PPTX, Images
    View the most challenging documents with speed and reliability. Reflow content. Embed slick and ready controls, or take full control with our source code.
  • Review & Approval
    Annotate and collaborate PDF, MS Office, and other formats with highlights, stamps and notes. Support real-time collaboration, XFDF, and all PDF annotation types.
  • Document Comparison
    Compare two documents side by side and highlight differences. Compare changes in semantic categories, such as headers, paragraphs, numbers, and generate a document with a summary of differences for easy review.
  • PDF Form Filling & Extraction
    Support interactive form filling, FDF, and embedded JavaScript. Or, programmatically create, pre-fill, sign, extract, and flatten PDF forms.
  • Page Manipulation & Document Assembly
    Programmatically or interactively insert pages and content, append, split, remove, crop, reorder, rotate, export, edit, and much more.
  • PDF Text Editing
    Edit PDF text and images, resize or change the position of text and images. Apply different styles like bolding, italicizing or underlining.
  • Digital Signatures
    Sign PDFs using standard (and custom) Digital Signatures. Extract information for validation. Support multiple signatures and XFDF.
  • Redaction
    Safely remove sensitive content within PDFs without covering or obscuring it. Redact regions interactively or programmatically.

Key Features & Functionality

  • View PDFs, DOCX, XLSX, PPTX, and images with multiple viewing modes and unlimited zooming
  • Annotate, comment, review and approve
  • Rotate, rearrange, delete and extract pages
  • Search the document using multiple search modes
  • Search and highlight specific search terms
  • Redact and remove sensitive information from documents


To open documents you can do so by passing a URL or using provided connected system to open documents from Appian: https://community.appian.com/b/appmarket/posts/pdftron-web-viewer-connected-system.

Check out the full list of capabilities: https://www.pdftron.com/feature-chart/?utm_medium=partner&utm_source=appian