# Annotate, sign and edit PDFs on your phone

Annotate, sign, fill in and edit PDFs in the Drime mobile app, manage their pages, and merge, split, reduce or make PDFs searchable.

Updated: 2026-10-22  
Source: https://drime.cloud/support/mobile/pdf-on-your-phone

The Drime mobile app has a PDF editor. Open a PDF's menu and tap **Annotate**.

## The editor's modes

- **Read**: read the PDF.
- **Annotate**: highlight, underline or strike text, draw with a pen or highlighter, erase, add shapes, a text box, a note, a stamp, a signature or an image.
- **Edit**: change text and objects, erase an area, and **Redact**: press and hold, drag over what must disappear, then tap **Apply redactions**. The text and images under the marks are removed from the file, and this can't be undone.
- **Form**: fill in a form, or add fields.
- **Comment**: comment on the PDF.

## Manage the pages

In the pages view, you can reorder, **Rotate**, **Duplicate** and **Delete** pages, add a **Blank page**, **Insert PDF** or insert a scan.

## Save

When you save, choose **Replace original** to update the PDF, or **Save as copy** to keep the original and add a new file next to it.

## More PDF tools

From a PDF's menu, you can also:

- **Merge PDFs** into one;
- **Split PDF** into several files;
- **Reduce size**;
- **Recognize text (OCR)** to make a scanned PDF searchable. It runs on your phone.

A password-protected PDF opens once you enter its password. No tool in the app adds or removes a PDF's password.

## Next steps

- [Edit a PDF](https://drime.cloud/support/pdf-editor/edit-a-pdf) on the web
- [Fill in and sign a PDF](https://drime.cloud/support/pdf-editor/fill-and-sign-a-pdf)
- [Send and sign documents with Drime Sign in the app](https://drime.cloud/support/mobile/sign-on-your-phone)