Add text, images, shapes, highlights, stamps, and more — right in your browser.
Drop your PDF on the desk
All editing happens locally in your browser
Max 100 MB per file
Editing and export run in your browser. Keep the original and review your downloaded copy.
The field notes
A little context for your next step.
PDF FLINT provides a full-featured PDF editor that runs entirely in your browser, letting you add text, insert images, draw shapes, apply stamps, highlight passages, and annotate pages without installing any software. It covers the most common editing tasks that would otherwise require a paid desktop application like Adobe Acrobat.
The editor renders your PDF page by page in a visual WYSIWYG canvas. You click anywhere on a page to place a text box, drag an image file onto the canvas to embed it, or select from a library of shapes and stamps. Highlights, underlines, strikethroughs, and freehand drawing tools are available for annotation. All changes are visible in real-time, and full undo/redo support means you can experiment freely without risk. When you are finished, the edited PDF is assembled client-side and ready for download.
This tool is useful for filling out forms that are not interactive, adding signatures or initials to contracts, annotating blueprints or design mockups, inserting a company logo onto a cover page, or marking up documents for review. Students, professionals, and casual users who occasionally need to modify a PDF will find it far more convenient than downloading and learning a desktop editor.
All editing happens inside your browser tab — your document is never uploaded to a server. There are no watermarks on the output, no page limits, no feature gates, and no account required. Open PDF FLINT, upload your PDF, make your edits, and download the finished file.
Upload the PDF document you want to edit in the visual editor.
Add or modify text, insert images, draw shapes, apply stamps, and annotate.
Download your edited PDF with all changes applied.
You can add new text anywhere on the document. Editing existing text depends on how the PDF was created.
You can add text boxes, images, shapes (rectangles, circles, lines), stamps, highlights, underlines, and freehand drawings.
PDF FLINT editor covers the most common editing needs. For advanced features like form creation, a desktop editor may still be needed.
Yes, the editor supports undo and redo operations so you can easily correct mistakes.
Yes, the PDF FLINT editor is completely free with no watermarks, limits, or sign-up requirements.