PDF Annotator Online
Add highlights, underlines, notes, and comments to PDF pages, then download the annotated PDF.
MARKUP PDF annotator
Click a page, drag the markup box into place, add it to the list, then download one annotated PDF.
- No annotations yet.
What it does
This free online PDF annotator lets you mark up PDF pages in your browser. Click between pages, drag the annotation box onto the focused PDF page, add highlights, underlines, note boxes, and comments, review pending annotations, and download a new annotated PDF without uploading the file.
Supported file types
Supported input file type: PDF. Output file type: annotated PDF.
FAQs
Can I annotate a PDF online for free?
Yes. Upload a PDF, add highlights, underlines, notes, or comments, then download the annotated PDF.
Can I highlight text in a PDF?
Yes. Choose Highlight, drag the highlight box over the text or area, add it to the annotation list, and download the PDF.
Can I underline text in a PDF?
Yes. Choose Underline, position the underline over the current page, and add it before downloading.
Can I add comments or notes to a PDF?
Yes. Choose Note/comment, type the note text, drag the note box into place, and download the PDF with the note included.
Can I annotate multiple pages?
Yes. Use the page tabs to move between pages and add annotations to each page before downloading once.
Can I remove an annotation before downloading?
Yes. Pending annotations appear in a list where each annotation can be removed.
Are PDF annotations uploaded?
No. PDF annotation, preview, and download all run locally in your browser.
Can I also sign the PDF?
Yes. Use Sign PDF when you need a typed or image signature.
Are my PDFs uploaded?
No. PDF files are processed locally in your browser.
Do I need to install a PDF editor?
No. The PDF tools run online with no downloads, no installation, and no account setup.
Can I download the finished file as a PDF?
Yes. PDF tools use a Download PDF button for the finished document.