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PDF Editor Online Free
This free PDF editor lets you mark up and tidy a PDF right in your browser: add text such as a name, date or "APPROVED" stamp, place an image or signature, cover a line with a coloured box, rotate a sideways page, delete a blank page, or move a page up or down. When you are happy, save a new copy. Nothing is uploaded — the file never leaves your device. One honest limit, stated up front: you can add text and images on top of a page, but text already inside the PDF cannot be changed or removed by any browser tool, including this one.
Add text
Add an image (signature, stamp or photo)
Cover a line or area with a box
Arrange pages
Your file is edited on your device with the PDF library stored on this website — never uploaded. Note: a box hides text on screen, but the text stays inside the file; to truly remove sensitive text, use the Redact PDF tool's secure mode.
How to use this PDF editor
- Drop your PDF into the box, or click to choose it. The tool shows how many pages it has.
- Add what you need — text, an image or a cover box. Each change applies to the working copy straight away, and the status line keeps count.
- Use the "Arrange pages" tools to rotate a sideways page, delete a page you do not need, or move a page up or down.
- Made a mistake? Press "Start again from the original file" — your original was never changed.
- Press "Save and download edited PDF" and check the result in your usual PDF reader.
How this editor works — and its honest limits
A PDF page is like a printed sheet: the words on it are fixed ink. This tool works the way you would with a pen and a stapler — it writes new marks on top of the sheet, covers a line with a coloured strip, turns a sheet around, removes a sheet, or changes the order of the sheets, using the pdf-lib library in your browser.
What this editor cannot do: it cannot change, correct or delete text that is already part of the PDF — no browser tool honestly can, because the words are baked into the page rather than stored as editable paragraphs. If a website claims to edit the text inside any PDF for free, it is either covering the old text with a box (like the box tool above) or rebuilding your file on a server, often with mistakes. For forms with real fillable fields, use the PDF Form Filler linked below instead.
Worked example
Ramesh has a 3-page scanned application form. Page 1 needs his approval stamp, page 2 was scanned sideways, and page 3 is a blank sheet the scanner added. He drops the file in and the tool reports 3 pages. In "Add text" he types APPROVED, chooses page 1, centre position, Helvetica Bold at 36 points in red, and presses the button. In "Arrange pages" he sets page 2 and rotates it 90°, then sets page 3 and deletes it — the status now reads 2 pages. He saves and opens the download: a stamped first page, a straight second page, and no blank page.
What you can and cannot do
| Job | Possible here? |
|---|---|
| Add a name, date, stamp or note to a page | Yes — Add text |
| Add a signature image or photo | Yes — Add image (PNG or JPG) |
| Hide a line from view with a coloured box | Yes — but the text stays in the file; use Redact secure mode to truly remove it |
| Rotate, delete or reorder pages | Yes — Arrange pages |
| Correct a spelling inside the existing text | No — the original words cannot be changed in a browser |
| Fill a form with real form fields | Use the PDF Form Filler tool instead |
Frequently asked questions
Are my PDF files uploaded to a server?
No. The editor runs entirely in your browser using the pdf-lib library, which is stored on this website itself. Your file is opened on your device, edited in the page, and the download is created on your device. Nothing about your document travels over the internet.
Can I edit or delete text that is already inside the PDF?
No — and be careful of any tool that promises this in a browser. Text inside a PDF is fixed on the page, like print on paper; it is not stored as an editable paragraph. This editor can cover a line with a coloured box so it cannot be read on screen, but the words remain inside the file. If the words must truly be gone, use the secure mode of the Redact PDF tool linked below.
Will editing reduce the quality of my pages?
No. The original pages are copied through exactly as they are — they are not re-scanned, re-typed or re-compressed. Only the text, images and boxes you add are new. An image you add is placed at the size you choose, so pick a clear image if it must print well.
Is there a file size or page limit?
There is no fixed limit in the tool, but everything happens in your browser's memory. Files up to a few hundred pages and around 50 MB work comfortably on a normal phone or laptop; very large files may be slow or run out of memory on an old device. If that happens, split the work: edit a smaller file, or use a desktop browser.
Which fonts can I use for added text?
The three standard PDF fonts: Helvetica, Helvetica Bold, Times Roman and Courier. These are built into every PDF reader, so your added text shows the same everywhere without embedding a font file. Only basic Latin letters, numbers and common punctuation are supported — text in scripts such as Devanagari cannot be stamped with these fonts.
Can I undo a change?
You can undo everything at once with 'Start again from the original file', which throws away the working copy and reloads your untouched original. There is no step-by-step undo, so if you want to try one risky change after several good ones, save a copy first, then continue editing.