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Annotate and sign

Edit PDF

Add text, highlights, drawings, boxes, images, and signatures to any page, and change existing text where the PDF allows it. All in your browser.

  • Add text and signatures
  • Undo and redo
  • No upload or account

Your file never leaves this device — everything happens locally in your browser.

The toolbar

What you can add to a page

Each tool places a new object on the page. Select it later to move, resize, or delete it.

  • Text

    Type new text anywhere on a page.

  • Signature

    Draw it with a mouse or finger, or type your name.

  • Image

    Place a picture, a logo, or a scanned stamp.

  • Highlight

    Mark passages the way a highlighter pen would.

  • Draw

    Freehand lines for circling, underlining, or notes.

  • Rectangle

    Boxes around anything you want to call out.

Know before you start

What this editor can and can't do

It's built for marking up and signing a PDF, with text changes where the file allows them. It isn't a page-layout editor.

  • Change existing text

    Usually

    Click text on the page and type over it. The replacement doesn't reflow the page, so longer text can run past the original's space.

  • Edit a scanned page

    No

    A scan is a picture with no real text in it. The tool tells you when you click one. You can still add text or a whiteout box on top.

  • Undo, redo, delete

    Yes

    Any object you added can be selected and deleted, and Undo and Redo work until you export.

  • Fill in form fields

    No

    Form fields aren't edited as fields. Type into the page with the Text tool instead.

FAQ

Frequently asked questions

See all frequently asked questions
Can this edit the existing text already in my PDF?

Usually. Click existing text on the page and a cursor appears where you clicked, so you can type over it. This rewrites the PDF's own text, not an overlay. Some limits: a scanned page has no real text to edit, and the tool tells you when you click one; a replacement doesn't reflow the page, so longer text can run past the space the original took up; and a character the PDF's font can't show fails just that one edit, with a message, instead of corrupting the file.

Is my PDF uploaded while I edit it?

No. Every change happens entirely in your browser — your file is never sent to a server.

Can I remove or undo something I added?

Yes — select any object you've added and delete it, or use Undo/Redo at any point before you export.

What does the whiteout tool actually do?

It draws an opaque box over the area you select, covering what's underneath in the exported PDF. It doesn't remove the original content from the file's underlying data, so it isn't a substitute for a true redaction tool when the file will be shared with people who could access the source layers.

Does zooming in or out change where my edits end up?

No. Zoom only changes what you see while you work — every object's position and size is stored independent of zoom, so the exported PDF is unaffected by whatever zoom level you were using.

Can I edit a password-protected PDF?

No. PDFs with a password, including ones that only restrict editing, aren't supported. Save an unprotected copy in a program that can open the file, then open that copy here.