PDF Tool
Mark PDF Pages
Mark specific PDF pages with a coloured banner.
For per-line/text highlights with drag-to-select, use our PDF Editor.
Your files are processed locally and never uploaded to a server.
About Mark PDF Pages
Mark PDF Pages helps you flag important sections of a PDF at a glance.
How to use Mark PDF Pages
- 1Upload a PDF.
- 2Choose pages and highlight color.
- 3Click Highlight & Download.
Why use Mark PDF Pages
- 100% free with no signup and no watermark
- Runs entirely in your browser — files never leave your device
- Works on Windows, macOS, Linux, Android and iOS
- One-click download of the finished PDF
- Flag important pages
- Custom colour
- Instant
Frequently asked questions
What does the Mark PDF Pages tool do?
Mark PDF Pages lets you mark specific pdf pages with a coloured banner. It runs entirely inside your browser so your files stay on your device — nothing is uploaded to a server.
Is Mark PDF Pages really free to use?
Yes. Mark PDF Pages is 100% free, with no signup, no watermark and no daily limit. You can process as many PDFs as you want.
Do I need to install any software?
No. Mark PDF Pages is a web-based tool that works in any modern browser — Chrome, Edge, Safari, Firefox and Brave — on Windows, macOS, Linux, Android and iOS.
Are my files safe with Mark PDF Pages?
Yes. Mark PDF Pages processes every file on the client side using JavaScript. Your PDF is never uploaded, stored or shared. Close the tab and it's gone.
Does Mark PDF Pages work on mobile devices?
Yes. Mark PDF Pages is fully responsive and works on Android phones, iPhones and iPads. Just open the page in your browser and pick a file.
Is there a file-size limit for Mark PDF Pages?
We recommend files under 100 MB for the smoothest experience. Larger files may work but can slow down older devices because everything is processed in your browser.
Will Mark PDF Pages reduce the quality of my PDF?
Mark PDF Pages keeps the original quality wherever possible. Any quality trade-offs (for example when compressing or exporting to images) are clearly labelled and controlled by you.
Can I use Mark PDF Pages without an internet connection?
You need internet to load the page the first time. After that, most processing happens locally in your browser — the PDF itself never travels over the network.
Does Mark PDF Pages add a watermark?
No. Files produced by Mark PDF Pages are clean, watermark-free and safe to share professionally or submit to official portals.
Can I use Mark PDF Pages for commercial or client work?
Yes. There are no licensing restrictions on the output — use it for freelance projects, agency work, client deliverables or internal business documents.
Which PDF versions does Mark PDF Pages support?
Mark PDF Pages supports standard PDF 1.4–1.7 files created by Word, Google Docs, Adobe Acrobat, printers, scanners and mobile apps. Encrypted PDFs must be unlocked first.
Why is my PDF password-protected file rejected?
For security we don't process encrypted PDFs. Use our PDF Password Remover first (if you have the password), then run the file through Mark PDF Pages.
Can I mark pdf pages more than one file at once?
Yes — where it makes sense (for example merging or converting), Mark PDF Pages accepts multiple files at once and processes them in a single click.
What browsers work best with Mark PDF Pages?
Any Chromium-based browser (Chrome, Edge, Brave, Opera) or the latest Safari and Firefox will give the best speed. Older browsers may lack the modern APIs the tool relies on.
Does Mark PDF Pages keep my PDF's bookmarks and links?
Structural features like bookmarks, hyperlinks and metadata are preserved wherever the operation allows. Conversions to image formats (JPG, PNG, PPT) naturally flatten these into pixels.
How long does Mark PDF Pages take?
Most PDFs under 20 MB finish in a few seconds on a modern laptop or phone. Larger files take proportionally longer because everything is computed on your device.
Can I undo an operation performed by Mark PDF Pages?
Mark PDF Pages never modifies your original file — it creates a new PDF and downloads it. Your source file on disk stays exactly as it was.
Do you store logs of my uploads?
We can't — nothing is uploaded. There are no server logs of your file names or contents because your PDF never leaves the browser tab.
Is Mark PDF Pages better than desktop apps like Adobe Acrobat?
For quick one-off jobs, Mark PDF Pages is faster: no install, no license, no waiting. Acrobat is still the choice for heavy editing workflows — Mark PDF Pages covers 90% of everyday needs.
How can I report a bug or request a feature?
Use the contact page linked in the footer. We read every message and roll fixes and improvements into Mark PDF Pages regularly.