Can I edit a PDF on my phone without installing an app?

Yes. Open the tool page in your phone browser (Chrome/Safari); adding text, annotating and signing work with no installation.

Can I sign a PDF on iPhone?

Yes. Open the sign tool in Safari, draw your signature with your finger or upload a photo, place it on the page, and download.

Can I add text to a PDF on my phone?

Yes. With the annotate tool you can tap blanks and add text, and fill forms — all on the phone.

Is my file safe on the phone?

Annotating and signing happen on your device and the file isn't sent to a server. True text editing runs on a server but the file isn't stored.

Yes. Adding text, annotating and signing are free and need no sign-up.

How to Edit a PDF on Your Phone (No App): Text, Signature, Markup

Add text, sign and annotate a PDF on your phone with no app — all in the browser. How to do it on Android and iPhone.

You need to sign a document or add a note to a form on the go, but you don't want to install a PDF app on your phone. You don't have to — you can do most of this in your phone's browser, with no installation.

What can you do on your phone with no app?

Add text/notes and fill in blanks → Annotate tool
Sign (draw with your finger, type, or upload a photo) → Sign tool
Highlight, boxes, drawing → Annotate tool
Actually delete and change existing text → Edit tool

Step by step (Android and iPhone)

Open the tool in your browser: Open the tool page in your phone browser (Chrome/Safari) — no install.
Upload your PDF: Pick your file; the annotate/sign tool runs right on the phone.
Edit and download: Sign/mark with your finger, then save with "Apply & download".

Annotate PDF on Your Phone — Add text, sign, annotate — on your phone, no app, free.

Is my file safe?

Annotating and signing happen entirely in your phone's browser (on your device); the PDF isn't uploaded and stays 100% private. Only true text deletion/editing runs on a server, and the file isn't stored after processing.

For a signature, sign once on white paper and upload the photo; the tool cleans the background and places it on the document. After filling and signing, you can email or WhatsApp it straight from your phone.