Annotate PDF
Draw highlights, lines, rectangles, rounded rectangles, circles and text notes on PDF pages. Marks are vector overlays written into the page content, not interactive PDF annotation objects.
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Mark important content directly on PDF pages with six markup tools:
- Highlight:Highlighter effect with adjustable color and opacity.
- Line:Draw a line between any two points, with adjustable width and color.
- Rectangle / Rounded Rectangle / Circle:Outline important areas. Adjust border width, fill opacity and corner radius.
- Text Note:Place a text reminder anywhere on the page.
While drawing a circle, hold Shift to make a perfect circle. Original PDF text remains selectable and searchable. Move, recolor or delete marks after drawing them. Undo and redo are available separately for each page.
Keyboard shortcuts: Ctrl+Z to undo, Ctrl+Y to redo.
⚠️ These are visual marks drawn into the page content, not standard PDF annotations. Other readers cannot treat them as interactive annotations, and individual marks cannot be removed after download.
How to use this tool
- Open a PDF and choose a markup tool.
- Draw marks or place a text note, then adjust color, width, opacity or note text.
- Use Select to move or edit marks, and Undo or Redo to revise the current page.
- Click Apply Marks and Save when the pages are ready.
Frequently asked questions
Does the original PDF text stay searchable?
Yes. The marks are added as vector overlays, leaving the original text selectable and searchable.
Can another PDF reader edit or remove individual marks later?
No. Saved marks become part of the page content rather than standard interactive annotations. Edit or delete them in this workspace before saving.