About this tool
Add an open password to a PDF with AES-256 encryption, right in your browser.
1CLIK groups free browser tools with practical notes: when to use the feature, what stays on your device, and which neighbouring tool to open next.
If this helper is part of a product (short links, news, cards, labs), follow the on-page actions into that product rather than expecting a full studio inside this tab.
For questions that are not about this widget, use Help or Contact. For longer how-tos, the blog publishes original guides tied to these tools.
Quick steps
- Read the summary and privacy note.
- Use the widget for the job in front of you.
- Open a related tool if the next step is a different format.
- Visit Help if something is unclear.
We prefer on-device processing for files and text. Product tools that need an account will say so on the page.
FAQ
Is an account required?
Most free utilities work without login. Saving drafts or Link-in-Bio pages does need an account.
Where is the policy?
Privacy, terms, and cookies are linked in the footer.
Can I request a tool?
Yes — use the contact form and describe the job, not just the feature name.