Last updated November 8, 2026

Edit a PDF online

Goal: Your PDF with your text changes, downloaded to your device.

Before you start

Have the PDF on your device. The upload box shows how large a file you can upload.
You don't need an account.

Go to the Edit PDF page and select Choose PDF file. You can also drop the file anywhere on the page.

Select a line of text on the page and type your change. The edited line keeps its own font, size and colour.

Select an empty spot on the page and type. To choose a size or colour for new text, use Style for new text in the Edit panel.

Select Download edited PDF. indox applies your changes and the file downloads to your device.

Problem	Cause	Fix
Download edited PDF is greyed out	You haven't changed anything yet	Change a line or add new text first. Your edits are listed under Changes
You see This PDF is password-protected	The file is locked with a password	Enter the password to open it, or choose another file
You see Couldn’t prepare your download	Your changes couldn't be applied to this file	Select Download edited PDF again. If it keeps happening, try another file