Free PDF editor

How to use the free PDF editor

1. Click Open PDF (or drop a file onto the page) to read it. Pages appear in the main view with a thumbnail rail down the left.
2. To change wording that's already in the document, choose Edit text and click the line you want. The tool finds that run of text, covers it, and drops an editable box in its place already filled with the original wording — matched to the original's font, size and colour, sampled from the page itself.
3. Working from a scan? Use ⋯ → Recognize text (OCR) first. It reads the text off the image so you can edit it, and can add an invisible text layer that makes the saved PDF searchable and selectable.
4. To add something new, pick a tool: Add text (click to place a box and start typing, or drag to set its size), Sign, Draw for freehand ink, Highlight, White-out, plus boxes, ovals and images.
5. Use Select to move or resize anything you've added — drag the body to reposition, drag a corner handle to resize, and double-click any text to retype it in place. Ctrl+Z undoes.
6. Manage pages in the left rail: drag thumbnails to reorder, and use the hover buttons to rotate, duplicate or delete. Merge in… adds another PDF onto the end.
7. Click Save PDF to download the edited file. The ⋯ menu holds extract, split-per-page, save-as-images, page numbers, watermark and metadata.

Common uses

• Sign a contract without printing it: open the PDF, draw or type your signature, drop it on the line, and download the signed copy — the document never leaves your laptop.
• Fill in a form that isn't fillable by typing text straight onto the page, then flatten it into a normal PDF by saving.
• Redact or correct a document: white-out the old wording and type the replacement over the top.
• Combine separately scanned pages or a stack of invoices into one PDF, drag them into the right order, and rotate any that came out sideways.
• Extract just the pages you need — the signature page of a 90-page agreement — or split a manual into one file per page.
• Stamp CONFIDENTIAL across every page, or add page numbers to a document that shipped without them.

Tips & limitations

• How text editing really works. A PDF stores positioned glyphs rather than editable paragraphs, so nothing in a browser can reflow a paragraph the way a word processor does. The Edit text tool does the next best thing automatically: it locates the run of text you clicked, covers it, and gives you an editable copy at the same position and size. Retyping a price, a date or a name is seamless; retyping a whole paragraph into a longer one won't rewrap around the rest of the page.
• About the font when you retype. PDFs embed only the glyphs a page actually used — an all-caps heading's font often contains no lowercase letters at all. So the editor reuses the document's own typeface whenever the characters you type exist in it (perfect for changing a figure, a date or a name), and otherwise substitutes the closest of a set of bundled open fonts, matched on the original's name. The properties panel always tells you which of the two is in use, so you're never guessing.
• White-out hides text but doesn't delete it. Covering something with the White-out tool is a visual patch — the original characters remain in the file and can still be selected, copied or found by search. If you're removing something sensitive, use ⋯ → Flatten pages to images, which rebuilds each page as a picture and destroys the text layer for good. The trade-off is that the result is no longer selectable or searchable.
• Signing here is an electronic signature, not a digital one. You're placing a visible image of your mark, which is what the vast majority of agreements ask for. It is not a cryptographic signature backed by a certificate (PAdES), so it won't show a green validation badge in Acrobat.
• When you edit a single PDF without reordering pages, the original file is modified in place, so form fields, links and bookmarks survive. As soon as you merge files or reorder pages, the document has to be rebuilt from copied pages — and those document-level features can be lost. The status message after saving tells you which path was used.
• Password-protected PDFs can't be opened. Remove the password in your usual viewer first — for a file whose password you know, printing it to a new PDF is the standard workaround.
• Typed text is drawn in Helvetica using the standard PDF character set, so unusual characters and non-Latin scripts may not appear. Stick to ordinary Latin text for reliable output.

How it's built & why it's safe

This is a real PDF application running entirely in your browser, built on two open-source libraries served from this site rather than a CDN: Mozilla's pdf.js reads and renders pages, and pdf-lib writes the edited file back out. Your document is decoded into your browser's memory, drawn to a canvas, and rebuilt locally when you save — there is no upload, no server, no queue, no watermark and no account. That matters most for exactly the files people hesitate to hand to a website: contracts, medical records, financial statements, anything with a signature on it. Competing online PDF editors work by uploading your document to their servers and processing it there; this one physically cannot, because there is no endpoint to send it to. Close the tab and nothing remains — signatures you save for reuse are kept only in your own browser's local storage, on this device.

Related tools: Image Converter · Image Compressor · One Time Link

Further reading: Why Toolkit runs entirely in your browser (and why that matters)