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Annotate PDF

Annotate PDF pages: mark an area on technical record pages with a highlight, rectangle or line. Marks become page content and may invalidate signatures.

Six pages have a review line and Total: 148.50. Place a highlight, rectangle or line on selected pages and check its position in the downloaded PDF. Marks do not remove underlying content.

Your documents stay on this device. Tool downloads and usage statistics do not include file contents.

Local limits: Max single file: 60 MB

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A practical guide

Mark the area without obscuring recorded values.

  1. Choose a PDF, target page positions and a highlight, rectangle or line.
  2. Set the mark's color, position, dimensions and available stroke settings.
  3. Create the copy and inspect the marked area and nearby content.

Try this example

Place a rectangle beside a measurement table on page 3. Verify that values, units and notes remain readable.

Before

  • Page 2

After

  • Page 2 + highlight
Input and expected output for this task. Illustrative example.

Before you start: Marks become visual page content, not editable comments or redaction. They can cover information and may invalidate digital signatures. Use Add Text to PDF for a text label.

Add a text label
What you get

Add a highlight, rectangle or line to selected PDF pages. These visual marks are not redaction or editable comments.

Limits and important details

Layout: 10 MiB, all source pages up to 200, 40 MiB output; split can produce 400 pages. No unusual page units. Links are kept; comments and form fields are imprinted or removed, as you choose; signed PDFs and XFA forms are refused. Document metadata/bookmarks are not preserved. Split and crop clip visibility, not securely remove hidden content. Marks are not redaction or editable comments: one per run on up to 500 pages, Latin, Greek, Cyrillic, Hebrew, Arabic, Chinese, Japanese or Korean text up to 300 characters. Forms: 10 MiB, 200 pages, 100 plain single-line text, checkbox, dropdown or radio fields; no XFA, signatures or scripts. Appearances may change. Not PDF sanitization.

Example

Place a highlight on page 2 of the sample and inspect its position. Page 1 stays unchanged. Reuse the result to add another mark; this does not create editable comments.