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Annotate PDF

Add text annotations, notes, and comments directly onto PDF pages at any position.

Click to select a PDF file, or drag and drop

Your file never leaves your browser

How to Annotate a PDF

  • Upload the PDF you want to annotate.
  • Enter your annotation text, choose the page number, and set the position (X, Y in points from bottom-left).
  • Pick a font size and color, then click Add Annotation to download.

Example

You're reviewing a contract and want to add "Please verify clause 3.2" at coordinates (60, 720) on page 2. The tool draws the text directly onto the page at that position, creating a visible note that travels with the document.

Common Use Cases

  • Adding review comments or feedback notes directly onto PDF pages.
  • Placing labels, dates, or reference numbers at specific locations on a document.
  • Marking up a proof with change requests before sending it back to the designer.

FAQ

  • What coordinate system is used? PDF points start at (0, 0) from the bottom-left corner of the page. A standard A4 page is roughly 595 × 842 points.
  • Can I add multiple annotations? Currently one annotation per operation. Repeat the process to add more notes at different positions.
  • Is my file uploaded anywhere? No — annotation happens entirely in your browser.