How to Annotate a PDF Textbook
Add highlights, notes, and comments to a PDF textbook. Free browser-based annotation tool.
Annotate your PDF textbook with highlights, margin notes, and bookmarks for effective studying. FixMyPDF's annotation tool works in any browser — free.
Open the Annotate Tool
Go to fixmypdf.in/tools/annotate-pdf in Chrome or Firefox on your laptop or iPad.
Upload the Textbook PDF
Click "Choose File" and upload the PDF textbook. Large files (50MB+) are supported.
Highlight Key Passages
Use the highlight tool to mark important definitions, formulas, or key arguments in yellow, green, or blue.
Add Margin Notes
Click the note tool and click near any paragraph to add a text comment. Great for writing summaries or questions while reading.
Save Annotated Copy
Download the annotated PDF. Your highlights and notes are embedded permanently — open it later in any PDF viewer and all annotations are preserved.
Try Annotate PDF Now — Free
Browser-based, private, and instant. No account or software required.
Open Annotate PDF