Annotate PDF Free
Annotate your PDF files free with BossPDF — the fastest PDF app for iPhone and iPad.
- Highlight, underline, and draw on PDFs
- Add notes and comments to any page
- No watermarks, no hidden fees — try every feature free
To annotate PDF files free, open BossPDF on your device, select your files, and tap Annotate. The entire process takes seconds and works right from your phone. No account needed.
How to annotate pdf free
- 1
Open BossPDF
Launch the app and open the PDF you want to annotate.
- 2
Select an annotation tool
Choose highlight, underline, draw, or add a note.
- 3
Mark up the document
Highlight text, draw arrows, or add comments where needed.
- 4
Use Apple Pencil
For precision, use Apple Pencil to draw and annotate.
- 5
Save your annotations
Save the annotated PDF — markups are embedded in the file.
Why this matters
You need to annotate a PDF, but every tool you find wants a subscription just to do one thing. You shouldn't have to pay before you even know if the tool works for you.
Why BossPDF
- Highlight, underline, strikethrough, and freehand draw
- Add sticky notes and text comments
- Full Apple Pencil support on iPad
- Multiple colors and line thicknesses
- Annotations are saved in standard PDF format
How people use BossPDF
Highlighting key passages in lecture slides while studying.
Marking up a client's brief with questions and suggestions.
Adding comments and corrections to student assignment PDFs.
Annotating a proposal with feedback before sending to the team.
Frequently asked questions
Is BossPDF free to annotate PDF files free?
Yes, you can try every feature in BossPDF for free. Download from the App Store and start annotating PDFs immediately — no account or credit card needed.
Can I annotate multiple PDF files free?
Absolutely. BossPDF supports batch processing so you can annotate multiple files at once. Select all the files you need and process them in a single tap.
Does BossPDF annotate PDFs free without uploading my files?
Yes. BossPDF processes everything on your device. Your files are never uploaded to any server, making it completely private and secure.
What's the maximum file size I can annotate with BossPDF?
BossPDF handles large files efficiently. There's no hard file size limit — even documents with hundreds of pages process quickly on your device.
Fast. Simple. Done.
Stop fighting with PDF tools. Download BossPDF and get it done in seconds.
Download on App Store