Edit PDF Online – Free PDF Editor In Your Browser

Edit A PDF Without Uploading It Anywhere

Most free PDF editors are a web form wrapped around someone else's server: you hand over your document, it is processed remotely, and you hope it is deleted afterwards. This one is different. The editor is JavaScript that downloads into your browser tab and does all its work there — reading the file, painting each page to a canvas, and writing the finished PDF back out. Your document never travels across the network, which makes this a reasonable choice for contracts, invoices, medical forms and anything else you would rather not post to a stranger's server.

What You Can Do

• Text boxes: click anywhere to drop editable text, then set the font, size and colour. Six web-safe fonts are available so the exported file looks the same on every device.
• Whiteout: drag a solid white rectangle over anything you want to remove, then type over the top of it.
• Redact: the same idea in solid black, for information that must not be readable. Because the overlay is flattened on export, redacted content is not selectable in the downloaded file.
• Highlighter: a wide semi-transparent brush for marking passages, exactly like a physical highlighter pen.
• Freehand pen: draw, circle, tick or scribble anywhere, with adjustable colour and stroke width.
• Shapes: rectangles, ellipses and straight lines, outlined or filled, for boxing figures and drawing arrows and rules.
• Images: drop in a PNG, JPG or WEBP — a logo, a stamp, a photo — and scale it to fit.
• Signatures: draw one with your mouse or finger, type your name in a handwriting font, or upload a scan of your real signature.
• Form filling: if the PDF is an interactive AcroForm, every field is listed in a side panel and written back into the real form field — save it still fillable, or flattened so the answers are permanent.
• Page operations: rotate, reorder and delete pages from the thumbnail sidebar.

Filling An Interactive PDF Form

When you open a file the editor checks it for an AcroForm — the standard interactive form format. If it finds fields, a Form panel opens listing each one by name, with the right control for its type: a text input, a toggle, or a dropdown of the allowed options. Whatever you type is written into the actual form field inside the document, not painted over the top, so the saved file behaves like a properly completed form rather than a picture of one. Each field is also outlined on the page with its current value, so you can tell at a glance which control belongs where.

When you save, you choose what happens to those values. Keep fields editable stores them in the form so anyone can revise them later. Flatten burns them into the page permanently — the right choice for a form you are about to email or print. Note that reordering or deleting pages forces the flattened save, because rebuilding the page list drops the interactive field wiring; the editor tells you when that applies.

Signing A PDF

Click Signature and draw with your mouse or finger, type your name in a handwriting font, or upload a photo of a signature you have already scanned. You can add an optional caption underneath with your name and the date — the date is pre-filled in Indian format and you can edit it. The signature and its caption travel as a single object, so you place, drag and resize them together, and they flatten onto the page on export like any other overlay.

To be straight about what this is: it produces an electronic signature image, not a certified digital signature. There is no PKI certificate, no cryptographic binding to the document, and nothing that would detect a later edit. That is fine for everyday business paperwork, where an image signature is routinely accepted. It is not sufficient where a Digital Signature Certificate is required — statutory filings, tenders, court submissions and most registrar work all need a DSC token and dedicated signing software.

How To Edit A PDF

1. Drag your PDF onto the box above, or click to browse for it. Files up to 50 MB are supported.
2. Pick a page from the thumbnail strip on the left. A red dot marks any page you have already edited.
3. Choose a tool from the toolbar and work directly on the page. Set colour, stroke width, font and size in the row underneath.
4. Switch back to Select to move, resize, rotate, reorder, duplicate or delete anything you have added. Ctrl+Z undoes, Delete removes the selection.
5. Use the sidebar buttons to rotate, move or delete whole pages.
6. Click Download edited PDF. The file is written in your browser and saved straight to your device.

Removing Or Replacing Text, Step By Step

This is the single most common reason people look for a PDF editor, so it is worth spelling out. Say an invoice has the wrong date on it. Select Whiteout and drag a box over the old date — it disappears under a white rectangle. Switch to Text, click just inside that box, and type the correct date. Match the size roughly to the surrounding text using the Size field, and pick a font that is close to the original. Export, and the page reads correctly. The original date is still technically present in the underlying page content, so use Redact instead if the point is to hide something sensitive rather than to correct a typo — and if the requirement is legal-grade redaction, flatten the page to an image first with our PDF to JPG converter and rebuild the document from those images.

Why Everything Runs In Your Browser

Three open-source libraries do the heavy lifting, all of them loaded on demand so they cost you nothing until you actually open a file. pdf.js — the same engine Firefox uses to display PDFs — renders each page to a canvas. Fabric.js provides the interactive overlay you draw on. pdf-lib writes the final document, copying your untouched pages through unchanged and stamping the flattened overlay onto the ones you edited. None of them needs a server, so none of them sends your file anywhere.

One practical consequence: the work happens on your machine, so a very large or image-heavy PDF will feel slower on an old phone than on a desktop. If a file struggles, compress it first with the PDF Compressor or work on a section at a time using Split PDF.

When To Use A Different Tool

• You need to rewrite whole paragraphs. Convert to Word with the PDF to Word converter, edit there, then convert back with Word to PDF.
• You only want to sign something. The dedicated Sign PDF tool is a faster path for that one job.
• You only want to highlight and comment. Try the PDF Annotator.
• You only want to remove or reorder pages. Use PDF Page Remover, Rotate PDF or Merge PDF.
• The PDF is locked. Clear the password with the PDF Password Remover first.

Frequently Asked Questions