Annotate PDF
Add notes, highlights, and strikethroughs as PDF comments that other apps can open, with no upload.
Processed on your device, not uploaded.
How to Annotate a PDF
- 1
Select Your PDF
A draft, manuscript, or document that needs notes.
- 2
Pick a Markup Tool
Note, Highlight Text, Underline, or Strikethrough.
- 3
Mark the Document
Drag from the first word to the last, or tap for a note.
- 4
Apply and Download
Press Apply Annotations, then Download PDF.
Annotate PDF Features
Notes Next to a Paragraph
Tap the page to place a note icon, then type your review comment.
See-Through Highlights
Transparent yellow follows the text lines, so the words stay readable.
Strike Through or Underline
Mark words to cut or key terms without changing the original text.
Editable in Other PDF Apps
Every mark is a standard PDF comment that reviewers can edit or remove.
Common Questions
Choose the Note tool, tap the page, and type in the Note text box. Press Apply Annotations when you're done.
Yes, the strikethrough line is saved as a comment on top of the text, so the original stays and the mark can be removed.
Yes, the Note tool places an icon on the page, and its text opens when the icon is tapped in a PDF reader.
Scanned pages have no selectable text. Mark the area with Manual Area in Highlight PDF instead.
Yes, annotations are made in the browser on your phone or computer, and the document isn't sent to a server.
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