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Highlight, underline, strikethrough, and draw on PDF pages — review and mark up documents visually.
Click to browse or drag and drop files here
Maximum file size: 100MB per file
Select the PDF you want to annotate.
Pick from highlight, underline, strikethrough, freehand draw, or text note.
Click and drag to annotate text or draw on the page.
Save the annotated PDF with all your markups embedded.
Highlight text in multiple colors to emphasize important sections.
Underline key passages or strikethrough text to indicate deletions.
Draw shapes, arrows, or freehand notes directly on any page.
Choose from a full color palette for all annotation types.
Assign a color per topic (e.g., yellow for key points, red for issues) to organize your review.
Zoom into the page for more precise highlighting and drawing.
Add text boxes alongside highlights to provide detailed comments.
Annotations are flattened into the PDF on download. Keep the original file if you may need an unannotated version.
Yes. Freehand drawing and highlighting work on both text-based and scanned image PDFs.
PDF annotation lets you review and mark up documents with highlights, underlines, drawings, and notes — essential for document review, collaboration, and study.
This tool is particularly useful when: