Annotate PDF
Open your PDF and edit it right on the page. Files never leave your device.
Choose a PDF to edit
or drop it here · Files stay private
Open your PDF and edit it right on the page. Files never leave your device.
or drop it here · Files stay private
Annotating a PDF lets you add comments, highlights, shapes and notes directly onto a document without altering the underlying text — ideal for reviewing contracts, marking up drafts, or leaving feedback on a design. Everything you add sits as a layer on top of the page, so the original content stays intact.
This annotator runs entirely in your browser, which means the document you are reviewing — often a draft or a confidential file — is never uploaded to a server. When you are finished, you can flatten the file to make your annotations permanent before sharing it.
Drop the file onto the upload zone or click to browse.
Select highlight, text box, freehand pen, arrow, or shape tools from the toolbar.
Click or draw on the page to add your annotations.
Click Save Annotated PDF to download the marked-up version.
Annotations are flattened into the page on save, making them permanent. If you need editable annotations, save your work before flattening.
Yes — the text highlight tool detects text regions so you can select exact words. On image-based PDFs, use the rectangle highlight instead.