PDFs are known for their tight format locking abilities, but you can also review and add notes to work on a document with your peers. The Review feature is specifically designed to help you collaborate on your documents using the review tools to annotate your PDFs as well as compare two documents.

Highlight text with our virtual text marker tool. You can also underline important passages or use strikeout to mark passages that need to be removed.

Add comments to explain which changes you would like to see in the document and use the customizable stamping tool to express predefined messages like “approved” or “confidential”.

Use the pencil tool to draw on the document. Tell how you would like to move passages and where they should go. Or use the predefined forms like arrows, rectangles and more.


PDF Architect Standard contains all features from the FREE Package plus:



PDF Architect Pro contains all features from the Standard Package plus:


Pro + OCR

PDF Architect Pro + OCR contains all features from the Pro Package plus:

OCR Advanced


Open and read any PDF document plus: 

Create PDF from Word, Excel, PowerPoint.

Rotate, move and delete pages, merge PDFs.