catScan

Edit PDF

Add text, images, shapes, highlights and drawings.

Processed on your device

  1. 1Choose the files
  2. 2Arrange and adjust
  3. 3Download

You need to sign in to use the tools. It's free.

8 free uses a month · Plus is unlimited

A full-screen PDF editor: write text with your choice of font, size and color, insert images, highlight, draw, add shapes, cover content and fill in forms. You can also select and copy the text of a page, even from scans.

How to edit a PDF in 3 steps

  1. Open the PDF in the editor.

  2. Choose a tool and add text, images, shapes, highlights or drawings where you need them.

  3. Download the edited PDF.

Why use catScan

  • Private by design

    This tool works inside your browser: the file is processed on your device and is never uploaded or stored.

  • Free to start

    Sign in with Google and get 8 free uses per period, shared with the catScan app. 1 use = 1 downloaded file; if something fails, it doesn't count.

  • Nothing to install

    It works in any modern browser on computer, tablet or phone. To scan paper with your camera, use the Android app.

Frequently asked questions

Can I change the existing text of a PDF?

You can cover the original text with the background color and write the new text on top, copying its font, size and color with the format brush. The result looks like an edit of the original.

Can I fill in PDF forms?

Yes. If the PDF has form fields (text, checkboxes, radio buttons or lists), you can fill them in and download the completed PDF.

Are my files stored?

No. This tool processes the file on your device, inside the browser: it is not uploaded to any server and nothing is stored.

Is it free?

Yes. Sign in with your Google account and you get 8 uses per period on the free plan (1 use = 1 downloaded file; if something fails, it doesn't count). catScan Plus, bought in the Android app, is unlimited on the web and in the app.

Does it work on my phone?

Yes. It works in any modern browser on Android, iPhone, Windows, Mac or Linux, with nothing to install. The catScan Android app also lets you scan documents with the camera.