Protect PDF
Add a password to restrict access to the file.
How to add a password and protect a PDF online
Upload the PDF you want to protect
Drag your file or click to select it from your computer.
Choose the password
Type the password that will be required to open the PDF. The encryption is generated with AES-256 technology right in your browser, so the file never leaves your computer or gets uploaded to any server.
Download your encrypted PDF
In a few seconds your password-protected PDF will be ready, using AES-256 encryption. No one will be able to open it without the key you chose.
Why protect your PDFs on PDFDocks?
Protecting PDFs with passwords prevents unauthorized viewing, copying, or editing. Most online tools upload your file to a server. PDFDocks adds password protection directly in your browser using JavaScript—your files stay private, processing is instant, and you control every aspect of security.
Can I add both user and owner passwords?
+
PDFDocks supports password protection. You set the password that controls access to the document.
Is password protection standard PDF encryption?
+
Yes. PDFDocks uses standard PDF encryption. Protected files work with any PDF reader that supports passwords.
Will protection make the PDF unreadable?
+
No. A password-protected PDF opens normally—the password is required only to view it.
Is my original PDF private?
+
Completely. All protection happens in your browser. Files never leave your device.
Can I protect only certain pages?
+
PDF protection applies to the entire document. If you need to protect only specific pages, consider splitting the PDF first.
Can I remove password protection later?
+
If you remember the password, you can create a new unprotected version by removing protection in PDFDocks.
Tools
Merge PDF
Combine several PDFs into one file, in any order you like.
Split PDF
Extract specific pages or split your PDF into ranges.
Rotate PDF
Rotate the pages you need, one by one or all at once.
Compress PDF
Reduce the file size by re-optimizing its content.
PDF to images
Convert every page into a high-quality PNG image.
Images to PDF
Combine your photos or images into a single PDF document.
Watermark
Add overlay text to every page of your PDF.
Unlock PDF
Remove the password from a PDF if you know it.
Remove pages
Delete the pages you don't need from your PDF document.
Extract pages
Select and save only the pages you need.
Reorder PDF
Freely reorganize, move or rearrange the pages in your document.
Crop PDF
Remove margins or adjust the visible area of the page.
Page numbers
Add page numbering with custom position, style and font.
Fill PDF forms
Detect fields and fill in existing PDF forms.
Sign PDF
Draw your signature and stamp it onto any page of the document.
Scan to PDF
Capture documents from your phone and send them straight into a PDF.
OCR PDF
Turn scanned PDFs into documents with selectable, searchable text.
PDF to Markdown
Extract your PDF's content into editable Markdown text.
Word to PDF
Convert Word (.docx) documents into PDF format.
Excel to PDF
Turn Excel spreadsheets (.xlsx) into PDF documents.
Compare PDF
Place two versions of a PDF side by side to spot the differences.
Redact PDF
Permanently cover up text or graphics containing sensitive information.
Repair PDF
Attempt to recover and fix damaged or corrupted PDF files.
JPG to PDF
Convert one or several JPG photos into a single PDF document.
PNG to PDF
Convert one or several PNG images into a single PDF document.
PDF to JPG
Convert every page of your PDF into a JPG image.
PDF to PNG
Convert every page of your PDF into a high-quality PNG image.
WEBP to PDF
Convert one or more WEBP images into a single PDF document.
PDF to WEBP
Convert each page of your PDF into a lightweight, high-quality WEBP image.
PDF to Word
Extract text from your PDF into an editable Word document (.docx).
PDF to Excel
Extract text and tables from your PDF into an Excel spreadsheet (.xlsx).
HEIC to PDF
Convert one or multiple HEIC photos (iPhone format) into a single PDF document.
EML to PDF
Convert an email (.eml) into a PDF document, including sender, recipient, subject, and message body.
MHT/MHTML to PDF
Convert a web page saved in MHT or MHTML format into a PDF document.
