What you can do here
Explore PDF security tools for locking PDFs, unlocking PDFs you own, protecting documents with passwords, and preparing safer PDF sharing workflows.
Simple workflow: Choose the tool that matches the task, export the final file, then open it once before sharing or uploading.
Tools in this hub
Start with the tool that best matches your PDF task.
Which tool should you choose?
Use this table to pick the right FilesDoctor workflow.
| Task | Best tool | Before you download |
|---|---|---|
| Confidential document | Lock PDF | Use a strong password and share it separately. |
| PDF you own with known password | Unlock PDF | Remove protection only when allowed. |
| Document metadata cleanup | Remove Metadata | Check title, author, and hidden fields. |
| Final sharing copy | Compress PDF | Reduce size only after security settings are correct. |
Helpful guides
Read these guides if you want step-by-step help for common document problems.
Practical tips
- Keep the original file safe before editing, converting, or compressing.
- Check page order, readability, and file size before upload.
- Use clear file names without special characters for online forms.
- Use the official upload requirement as the final rule for format and size.
FAQ
Can I lock a PDF with a password?
Yes. Use Lock PDF to add password protection before sharing.
Can I unlock any PDF?
Only unlock PDFs you own or have permission to access, and when you know the password.
Should I remove metadata before sharing?
For sensitive documents, review and remove unnecessary metadata before sending.
Is a password enough for every document?
A password helps, but you should still share files carefully and avoid sending sensitive documents to the wrong recipient.