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Annotate PDF Free

Annotate a PDF. Right in your browser.

Highlight, draw and add notes to study material, contracts and drafts.

Annotate PDF in 3 steps

  1. 1 Choose your PDF.
  2. 2 Pick Highlight, Draw, Box or Text and mark the page.
  3. 3 Save and download the annotated PDF.

Why use Annotate PDF on 108pdf

Annotate PDF runs entirely in your browser. Your file is opened by your own device, processed there and saved back to you, so it is never uploaded to a server and never stored by us. That makes it safe for ID cards, exam forms, contracts and any other document you would rather keep private.

There is no account to create, no watermark on the result and no daily limit. You can process as many files as you like, one after another, and the tool keeps working even on a slow connection once the page has loaded.

If the result is not what you expected, change the options and run Annotate PDF again on the same file. Nothing is lost, and your original file is never touched. Use the related tools below to continue the job, for example to resize, convert or merge the output.

Questions people ask

Are my files uploaded to a server?

No. 108pdf processes this file inside your browser using your own device. Nothing is sent to our servers, so there is nothing to delete afterwards and nothing that can leak.

Is this tool free?

Yes. It is free with no sign-up, no watermark and no daily limit.

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