PDF Studio Tool Suite

Your files are processed in your browser instead of being uploaded to our servers. There's no account to create, no daily task limit, and editing existing text is free. The PDF rendering library and, if you use OCR, the text recognition engine are downloaded from a public CDN (jsDelivr) the first time you need them, but your documents aren't sent anywhere.

Open the Free PDF Editor card above, choose the Edit Text tool, and click any line on the page. When the PDF includes its own font, the editor reuses it so your change blends in. Fix names, dates, numbers or typos in place, then download the updated PDF.

Yes. In the PDF Editor, use the Symbols button to stamp a checkmark (✓), cross (✕) or dot (•) onto a checkbox with one click. If the PDF has real form fields, you can just click them and type or tick. The Sign tool lets you draw, type, or upload a signature. It's placed on the page as an image, not as a cryptographic digital signature.

No. Rendering, editing, merging, and compressing all happen in your browser's memory, and your PDFs aren't uploaded to our servers. Closing the tab releases that memory. The only things fetched from outside are the PDF rendering library and, if you use OCR, the recognition engine and its language data.

Yes. When you open a scanned PDF, the editor offers a Convert with OCR button. It reads the printed English text in your browser and places each line where it sat on the page so you can click and retype it. Accuracy depends on the scan quality, so check the text before you download. Only the lines you edit become new text in the downloaded file.

While editing text, set its background in the Studio Tools panel (the Bg row on a phone): None lets the watermark, seal or tinted paper show through, White gives a clean white patch on plain paper, and the colour picker matches tinted paper. For textured paper, Snip Area copies a clean patch of the page to place over the old text.

Yes. With Edit Text or Select, press on the text and drag it anywhere on the page. Text you have already edited also shows Edit and Drag buttons when you hover over it with other tools.

You can open PDF and image files up to 100 MB each. Since the work happens on your device, how quickly a large document processes depends on your device's memory and speed. There's no server queue to wait in.