Edit existing PDF text, modify fonts and colors, insert shapes, draw annotations, and whiteout sensitive content—completely inside your browser.
Follow these simple steps to process your document privately in seconds.
Click 'Open PDF in Editor' and select a file from your computer or drag it into the workspace.
Click directly on text to edit words, or select highlighter, pen, shapes, or whiteout from the toolbar.
Export your edited PDF immediately with one click. The modified document downloads directly to your device.
Select and replace existing text blocks in PDF documents with exact font matching and styling.
Erase mistakes or block out confidential details cleanly using precision vector whiteout blocks.
Highlight important passages, draw freehand notes, add callout boxes, and draw geometric shapes.
Place images, logos, stamps, or screenshots directly onto any page with drag-and-drop resizing.
Your document is rendered in WebAssembly memory. Files are never transmitted across the network.
Seamlessly navigate multi-page contracts, manuals, and forms with thumbnail previews and zoom controls.
Your PDF is processed directly on your computer using WebAssembly and HTML5 Canvas technology. At no point during viewing, editing, or exporting is your file transmitted to external servers. Review our Security Architecture or read our verified Privacy Policy.
Yes. PDF Studio includes a browser-native text editing engine that detects page text glyphs, allowing you to edit text blocks directly in place.
Yes, PDF Studio is 100% free with no subscriptions, watermarks, or page limits.
Absolutely. All processing occurs locally on your machine via WebAssembly. No data or files ever touch a remote server.
Instant browser workspace. No registration, no watermarks, and 100% private.
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