PDF Editor
Add text, images and your signature, highlight, cover and draw on any PDF, then reorder, rotate, delete or extract pages. Free, no sign-up, and your file never leaves your device.
Drop a PDF here to start editing
or choose a file from your device. Up to 200 MB. Works on phone, tablet and desktop.
- Add text, images and signatures
- Highlight, box, whiteout and draw
- Rotate, reorder, delete and extract pages
- Page numbers, watermark, undo and redo
How to edit a PDF online without uploading it
Open a file and the editor shows every page as a thumbnail on one side and the selected page, full size, in the middle. Pick a tool from the bar, click on the page, and your change appears right where you clicked. When you are happy, press Download PDF and the finished file is built on your own device. Because nothing is sent to a server, it works for contracts, forms, invoices and ID copies you would rather not hand to a website, and it keeps working on a slow connection once the page has loaded.
What you can do
- Text: choose a font family, size, colour, bold, italic and alignment, then click where it should go. Double-click text later to change it.
- Images and signatures: place a logo, stamp or photo, then drag it and resize it from a corner. Sign by drawing, typing your name or uploading a picture; signatures from this session can be reused with one click.
- Highlight, rectangle, whiteout and draw: mark up a page, box a figure, cover a mistake, or sketch freehand.
- Pages: rotate, duplicate, delete, move earlier or later, drag to reorder, insert a blank page, add pages from another PDF, or extract a selection as its own file.
- Page numbers and watermark: choose position, format and starting number, or stamp text such as CONFIDENTIAL across every page.
What it cannot do
This is an overlay editor. It adds new content on top of the page, so it cannot rewrite the words that are already part of the PDF. To fix a typo, cover it with Whiteout and type the correction above it, or change the source document and export again. Whiteout hides content visually, but the original text can still exist inside the file, so it is not a safe way to redact private information. Password-protected files cannot be opened here. Existing form fields keep their appearance but may no longer be fillable in the saved copy, and bookmarks are not carried over.
Tips for a clean result
- Zoom in before placing small items such as initials or checkmarks; the Fit width button resets the view.
- Select an item and use the arrow keys to nudge it by one point, or hold Shift for ten.
- Use Undo and Redo freely; every move, resize and page change can be reversed.
- Rotate scanned pages first, then add your marks, so everything lines up with what you see.
Keyboard shortcuts
Ctrl or Cmd with Z undoes and with Y redoes. Delete removes the selected item, or the selected pages when the page list has focus. Arrow keys move a selected item. Page Up and Page Down switch pages, Enter edits the selected text, and Escape cancels the current tool.
Large files and your device
Pages are drawn only when you look at them, so documents with hundreds of pages open quickly. Saving a big file takes longer because every page is rebuilt on your device; a progress message shows how far it has got. On a phone, keep other tabs closed for very large files.
Frequently asked questions
Is my PDF uploaded to a server when I edit it?
No. The PDF is opened and edited inside your browser, and the finished file is built on your own device. Nothing is sent to ConverterMaster or anyone else. You can confirm this by opening your browser's network tab while you work.
Can I change the existing text in my PDF?
Not directly. This editor adds new content on top of a page: text, images, signatures, highlights, boxes and drawings. To correct existing words, cover them with the Whiteout tool and type the replacement over it, or edit the original document in the program that created it and export a fresh PDF.
Does Whiteout permanently remove sensitive information?
No. Whiteout draws a white box over the area, which hides the content visually, but the original text may still be inside the file and could be copied or recovered. Do not rely on it to redact confidential data. Use a dedicated redaction tool for that.
How do I add my signature?
Choose Sign, then draw your signature with a mouse, finger or stylus, type your name in a handwriting style, or upload a picture of your signature. Click the page to place it, then drag to move it and drag a corner to resize. Signatures you create stay available for the rest of your session and are never stored.
Can I open a password-protected PDF?
Not in this editor. Files protected by a password or with editing restrictions cannot be rewritten here. If you have the password, open the file in your PDF viewer and save or print a copy without the password, then add that copy.
Can I add text in languages such as Arabic, Hindi, Chinese or Sinhala?
Yes. Plain Latin text is saved as real, selectable text. For other scripts the editor draws the text as a picture so it always looks right, which means it cannot be selected or searched in the saved PDF.
How large a PDF can I edit?
Files up to 200 MB open, and pages load one at a time, so documents with hundreds of pages stay responsive. Very large files can be slow on phones and older computers because everything runs on your own device.
Will my edits survive in other PDF viewers?
Yes. Text, images, highlights and shapes are written into the page content itself, so they show the same in Acrobat, Preview, Chrome, Edge and mobile viewers. They are not editable annotations, so you cannot move them after saving.
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Sign PDF Rotate PDF Delete PDF Pages Add Page Numbers Watermark PDF Lock PDF PDF Merger PDF Splitter PDF Compressor Image to PDF PDF to JPG All converters