Your font and layout stay the same
Tap or click a line and type. New words appear in the same font as the words around them. You can also sign the file, fill out a form, and black out anything you need to hide.

Choose a file or drag it into your browser window. There's nothing to install.
A text box opens for your edit. When you finish, the paragraph reflows on its own.
Compare shows exactly what changed. If it all looks right, download the result.
We changed the date and the company name. Drag the line to compare: the font and spacing are the same, and nothing else moved.
If a change can't be made cleanly, for example when we can't find a letter the font is missing, the editor tells you and leaves the text as it was. It won't swap in a different font.
BeforeAfter
Yes, during the beta. All the tools are free, and your downloads have no watermark.
No. New letters use the document's font, and the line keeps its spacing. After each edit, the editor compares the page with the original.
Not the text itself. A scan is a picture of a page, so it has no separate letters to change, and the editor will tell you so. You can still sign it, add text, mark it up, or black out part of the page.
More questions? See Help.