Annotate, Compare & Review PDFs Like a Pro

Fully trackable commenting, annotation, and markup capabilities make collaboration a breeze.

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Annotate and leave comments

Add markup and comments using a variety of tools that are compatible with Acrobat and other PDF programs. Combine all comments and notes into a single PDF file.

Stamp documents

Stamp your PDF files just like rubber-stamping a paper document. Use our palette of ready‐made stamps, create your own, or choose a custom image.

Add links and attachments

Create interactive documents by adding active, clickable links or embedding any type of electronic file, including Word documents, presentations, images, and more.

Take measurements

Measure distance, perimeter, and area within PDF blueprints, drawings, and computer‐aided design (CAD) files before sending them to the printer.

Compare PDF files

Easily spot discrepancies when comparing two versions of a file. Quickly analyze the differences to save time and avoid unnecessary steps in the review process.

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The Only PDF Editor You Need

Score 30% on Nitro Pro

The #1 Adobe® Acrobat® replacement

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Discount only valid for licenses purchased through our online store. Offer cannot be transferred and does not apply to Nitro resellers or distributors.

X

The Only PDF Editor You Need

Save 30% on Nitro Pro

The #1 Adobe® Acrobat® replacement

Save 30% Now »

Discount only valid for licenses purchased through our online store. Offer cannot be transferred and does not apply to Nitro resellers or distributors.

X

The Only PDF Editor You Need

Save 30%

on Nitro Pro

The #1 Adobe® Acrobat® replacement

Save 30% Now »

Discount only valid for licenses purchased through our online store. Offer cannot be transferred and does not apply to Nitro resellers or distributors.