๐๏ธ PDF Annotate
Add highlights, underlines, and text notes to your PDF. Drag to highlight or underline, click to place notes. 100% in your browser.
Frequently Asked Questions
PDF Annotate: Add highlights, underlines, and notes
PDF Annotate lets you add highlights, underlines, and notes. Upload a PDF and get an annotated PDF โ all processed locally in your browser, with no uploads and no sign-up.
Highlight key passages in study material
Highlight key passages in study material. This is one of the most common reasons people reach for PDF Annotate โ and it handles the job in seconds, entirely in your browser.
Underline important contract clauses
Underline important contract clauses. This is one of the most common reasons people reach for PDF Annotate โ and it handles the job in seconds, entirely in your browser.
Add review notes to documents
Add review notes to documents. This is one of the most common reasons people reach for PDF Annotate โ and it handles the job in seconds, entirely in your browser.
Everything You Need in a PDF Annotate
Powerful features that make PDF Annotate fast, private, and free.
Instant Processing
PDFs are processed in your browser the moment you upload.
100% Private
Your PDFs never leave your device โ no server uploads.
Text-Based Output
Conversions produce real, searchable, selectable text.
All-in-One PDF Suite
Merge, split, edit, annotate, convert โ 25+ PDF tools.
Free Forever
No sign-up, no watermarks, no page limits.
Cross-Platform
Works on Windows, Mac, Linux, iOS, and Android.