Type a word or phrase and every place it appears gets a translucent colour block behind it, the way a highlighter marks paper. The text underneath is untouched and still fully selectable — only a tint is added on top.
How to highlight text in a PDF
Add the PDF you want to mark up.
Type the word or phrase to highlight, and pick a colour.
Download the highlighted PDF.
This runs in your browser. The file is not uploaded, there is no account to create, and nothing is added to the document you download.
Also searched for: highlight pdf text, mark up pdf, search and highlight. It is the same tool whichever way you found it.
Questions about highlight pdf
Can I highlight every occurrence of a word at once?
Yes — type the word or phrase and every place it appears gets a translucent colour block behind it, the way a highlighter marks paper.
Does highlighting damage the text underneath?
No. The text is untouched and still fully selectable; only a tint is added on top.
Is the PDF uploaded?
No. The file is opened, changed and written by this browser tab — it is never sent to a server, so there is no queue to wait in and nothing to delete afterwards. Once the page has loaded you can turn the network off and the tool still works.
Other PDF tools
Redact PDF — Permanently black out every occurrence of a word or phrase.
Watermark PDF — Stamp DRAFT, CONFIDENTIAL or your own text.
