Home / PDF Editor: Add Text, Signature & Highlight
🖊️ PDF Editor: Add Text, Signature & Highlight
Add Arabic, English or Hindi text, signatures, images, rectangles, white-out, highlights and freehand drawing to a PDF in your browser, then save.
🔒 Your files never leave your device
How to use: PDF Editor: Add Text, Signature & Highlight
Add Arabic, English or Hindi text, signatures, images, rectangles, white-out, highlights and freehand drawing to a PDF in your browser, then save. Everything happens inside your browser on your own device. Your files, numbers and text are never uploaded, there are no accounts, cookies or trackers, and closing the tab removes the data.
Common uses
- Filling and signing a form PDF
- Hiding details with white-out before sharing
- Adding notes or highlights
Step by step
- Open a PDF and move between pages.
- Pick a tool (text, signature, image, white-out, rectangle, highlight, pen) and tap the page.
- Drag objects to move, use the handle to resize, then Save PDF.
Worked example
For example, open the PDF, add a text box in Arabic, draw your signature, place it, and save. White-out only covers content visually; the text underneath may still be in the file.
Tips for better results
Check the page count and order in the preview before saving. Very large or scanned PDFs need more memory, so on an older phone close other tabs first. In most PDF tools, when you finish, the Next buttons can pass the new PDF to another PDF tool, without downloading it first. The page is designed for phones first, so it works on a 375-pixel screen as well as on a desktop.
Good to know
A PDF can hold real text, which stays sharp and searchable, or scanned images of pages, which are bigger. Tools that copy pages keep the original quality; tools that turn pages into images make files smaller but the text can no longer be selected. Password-protected or damaged PDFs may not open; remove the password with the software that created it first. Your original file is never changed, a new file is saved instead.
Why a browser-based tool?
Many online tools upload whatever you give them to a remote server, process it there and send it back. That is slower on a weak mobile connection and means a copy of your document, photo or figures sits on someone else’s computer. Free Adawat works differently: the code is downloaded once, then the work happens on your phone or computer. That keeps personal papers such as passports, visas, salary slips and contracts private, and it also means there is no queue, no file count limit and no waiting for a download link.
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FAQ
Can I edit existing text?
No. Use white-out to cover the old text, then add new text on top.
Are Arabic, Urdu and Hindi supported?
Yes, Noto fonts are embedded so text is shaped and ordered correctly. Urdu is saved in Naskh style, not Nastaliq.
Is PDF Editor: Add Text, Signature & Highlight free?
Yes. It is completely free, with no sign-up, no watermark and no daily limit. The only limit is your device memory for very large files.
Are my files or data uploaded?
No. All processing happens in your browser on your device. Nothing you enter or select is sent to a server.
Does it work on a phone?
Yes. It works in modern mobile browsers on Android and iPhone, and on tablets and computers.
Does it work without internet?
Once the page has fully loaded, the tool runs on your device, so it keeps working if the connection drops. Pages you have visited before can often open offline too.
Was this tool helpful?
Thank you! Your choice is saved on this device only. ✉️ Suggest an improvement