Every day people upload passports, payslips, contracts and medical reports to random "free converter" websites. Many of those sites copy the file to their servers, keep it for hours and sometimes much longer. You cannot see what happens to it there.
01The safer way: convert on your own device
Pdftoolio works differently. When you merge a PDF, convert Word to PDF, compress a video or remove a photo background, the work happens inside your browser, on your own device. The file is never uploaded, so there is nothing to leak, sell or forget to delete.
025 checks before you use any online converter
- 1Step 1Does it say where the file goes? Look for a clear statement that files are processed locally or deleted.
- 2Step 2HTTPS — the address must start with https://.
- 3Step 3No sign-up for simple tasks. Asking for an account just to convert a file is a warning sign.
- 4Step 4Works offline after loading? Local tools keep working when the connection drops.
- 5Step 5Honest about AI. AI features that read your text need a server; a trustworthy site tells you and asks first.
03Extra protection for sensitive files
- Lock a document with Protect PDF.
- Mark copies with Add Watermark.
- Remove a password you no longer need with Unlock PDF.
Frequently asked questions
It depends. Many upload your file to a server. Tools that process files in your browser, like Pdftoolio, never receive your document.
Load the tool, turn off Wi-Fi and try converting. A local tool still works; an upload-based one fails.
No. Files never reach our servers, so there is nothing to store.
