We aim to reply within a few business days. Please include the word "Altto" in your subject line so it doesn't get lost.
What to include
- Conversion issues — let us know roughly what kind of PDF it was (a scan, a form, a multi-column layout) so we can improve the tool.
- Copyright or takedown requests — since Altto never stores your files, there's nothing on our servers to remove, but if you believe this site itself infringes your rights, tell us the specific page and content and we'll respond promptly.
- Privacy questions — see our Privacy Policy first; most questions are answered there.
Before you write in
Check the FAQ and our guides — formatting and scanned-PDF questions are usually covered there already.