Annotate PDF Online

Add highlights, underlines, strikethroughs, sticky notes, and freehand drawings to your PDF documents.

Drop your file here, or

PDF files up to 50 MB

Features

Mark important passages with colored highlights in yellow, green, blue, or pink.

Place sticky notes with comments anywhere on the page.

Draw directly on the PDF with customizable pen colors and stroke widths.

Add rectangles, circles, lines, and arrows to point out specific areas.

Select the PDF you want to annotate.

Use the editor toolbar to highlight, draw, and add notes.

Save your annotated document with all markup included.

PDFTriX Annotate gives you all the markup tools you need — highlights, notes, drawings — right online.

Can others see my annotations?+

Yes. Annotations are saved in the PDF and visible to anyone who opens it.

Can annotations be removed later?+

Yes. Use our Remove Annotations tool to strip all markup from the document.