Opening-password scope
The base security feature is the password required to open a PDF. Advanced print/copy/edit permission restrictions are not included.
034 · PDF
PDF Password & Metadata Tool
Set or remove an opening password and inspect, edit, or remove PDF title, author, subject, and keyword metadata.
LOCALThe PDF and password stay in your browser and are not uploaded to a server.
HOW TO USE
How to use
- 01
Choose a PDF file.
- 02
Choose Password or Metadata.
- 03
Enter the current/new password or the document information you want to change.
- 04
Generate the result; the tool re-opens the output to verify its security and metadata state.
- 05
Download the verified result PDF.
PRACTICAL GUIDE
Practical PDF security and metadata rules
Set or remove an opening password and inspect, edit, or remove PDF title, author, subject, and keyword metadata.Removal requires the current password
Password removal works only when you already know the correct password and have authority to modify the document.
Success requires re-verification
Protected output is checked again for password behavior, and unlocked output is checked for password-free opening.
Document Info and XMP differ
Title, Author, Subject, Keywords and XMP can disagree, so full metadata removal checks both areas.
Metadata removal is not sanitization
It does not remove personal data from page content, comments, attachments, hidden layers, OCR text, or redaction targets.
Keep signed originals
Re-saving or changing encryption can invalidate certificate-based digital signatures. Keep the original signed PDF.
Passwords stay in browser memory
The implementation does not put passwords in URLs, localStorage, sessionStorage, or analytics payloads.
Sensitive documents stay local
Contracts and certificates are processed without an external upload workflow.
IMPORTANT NOTES
Important notes
- There is no password guessing, cracking, or bypass workflow.
- Metadata removal is not complete privacy sanitization or redaction.
- Password or metadata changes can invalidate existing certificate-based signatures.
- DRM, XFA, Portfolio, and other advanced PDF structures are not marked successful if result verification fails.
- Service limits are one PDF up to 50MB, passwords up to 128 characters, and editable metadata fields up to 2,000 characters each.
FAQ
FAQ
01Can it open a PDF if I forgot the password?+
No. It does not guess, crack, or bypass passwords.
02Is the file uploaded to a server?+
No. The current implementation is browser-local.
03Does removing metadata remove all personal data?+
No. It targets document information and XMP, not body content, comments, attachments, or hidden content.
04Does setting a password block printing and editing too?+
The base scope is an opening password. Advanced permission restrictions are excluded.
05What can I change besides title and author?+
Subject and Keywords can be edited; Creator, Producer, dates, and XMP presence can be inspected as advanced information.