Runs entirely on your local device. Your files never leave your device.
Related Tools
Add text boxes, images, highlights, freehand drawings, and shapes directly onto any page of a PDF, or insert and delete pages to restructure the document. Pick a tool from the toolbar, place it on the page you're viewing, and adjust it — every text box, image, and drawing stays selectable and movable until you download. Useful for annotating legal documents, filling out government forms, or marking up a contract before sending it back. Editing happens in your browser, so the file is rebuilt locally and never touches a server.
Open Your PDF
Choose or drag a PDF and FormatGrid reads it directly into your browser's local memory, rendering every page instantly without any upload.
Edit Pages Live
Pick a tool — text, image, highlighter, draw, eraser, or shapes — and place it directly on the page you're viewing. Every item stays selectable, movable, and deletable until you download.
Save & Download
Download your finished PDF the moment you're done; the file is rebuilt locally and never touches a server at any point.
Yes, editing PDFs on FormatGrid — adding text, images, highlights, drawings, shapes, or new pages — is entirely free, with no limits on the number of pages or edits and no account required.
Nowhere. FormatGrid never uploads your PDF to a server. Every edit is applied locally in your browser's memory, and the file is discarded the moment you close or refresh the tab.
Standard editors upload your file to a server before you can start editing, and again each time you save. FormatGrid loads and edits the PDF locally on your device's CPU, so there's no upload delay and every change appears instantly.
The eraser paints an opaque white stroke over whatever is beneath it — original page content or ink you've added — visually removing it from view. It doesn't alter the underlying page content that a PDF viewer's text layer sees, only what's rendered on top of it.