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New Look. New Products. New MobiSystems.

Add Comments And Markup PDFs With Style

Make the most of your projects and enjoy seamless collaboration with PDF markup software designed for the modern-day user. Whether it’s adding comments and overlay texts, placing stamps, or making custom drawings within your document, with MobiPDF you can always count on getting the job done to a professional standard.

Also available for Android and iOS
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Make PDF Annotation Fun

Guide your readers and provide detailed feedback with insightful comments, which you can later freely reposition anywhere within the document. Add text to PDF with resizable text boxes to expand on existing documentation, strikethrough outdated information, or underline critical content that others absolutely need to see.

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Make Sense of Your PDFs

Highlight PDF content with custom colors to make your document easier to read and navigate, then use the PDF markup app to take a quick snapshot and add it to another file for easy reference. Simplify complex concepts with geometric shapes and attach clarifying supporting documentation (PDFs, images, etc.) directly within your file.

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Insert Stamps And Drawings

Quickly add premade stamps, such as “Approved”, “For Comment”, or “Void” and submit your changes for review. Sketch down ideas for later planning stages directly in your PDF with the built-in drawing tools.

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Flatten PDFs to Preserve Your Work

Due to how the PDF format works, most of your PDF annotations, such as any comments you might have left in your document, will not be printed out. Commit your changes to print with MobiPDF's flatten PDF feature, or use it as an extra file security measure to prevent others from editing your forms or other types of interactive documents.

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Why Make MobiPDF Your Go-to PDF Annotator?

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Unlike other software solutions that let you annotate on PDF files but come with useless features or bloatware, we don’t like to waste your time. Whether you work on complex international projects involving multiple stakeholders or simply want to enjoy a novel from your PDF book library, you will find that each action within MobiPDF will require minimum effort on your part. PDF markups aside, even more complex work, like organizing pages, PDF editing, or even things like creating new PDF documents from scratch is quick and easy to do thanks to the familiar and simple user interface.

FAQ

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How to annotate a PDF is a question whose answer will depend on the needs of your current project. However, to ensure a frictionless PDF markup workflow, including when commenting on a PDF, most of what you need can be quickly accessed in a single right-click.

Get More PDF Tips Straight From Our Experts

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How to Annotate a PDF

See What Else Is Possible With MobiPDF

A curved, metallic blade rests horizontally against a plain, light gray background.