Password Protect a PDF
Add a password to open a PDF.
More tools
38 toolsEdit PDF
Edit existing text, add hyperlinks, format text, insert images and annotate your PDF.
PopularMerge PDF
Combine several PDFs into one file.
PopularCompress PDF
Reduce file size with adjustable compression.
PopularPDF to Word
Extract text and images into an editable DOCX.
PopularJPG to PDF
Combine JPG, PNG or WebP images into a PDF.
PopularSplit PDF
Save selected pages as separate PDF files.
PopularRemove pages
Delete selected pages from a PDF.
Extract pages
Save selected pages in a new PDF.
Organize PDF
Reorder, add, rotate or remove pages.
Scan to PDF
Use your camera or photos to create a PDF.
Repair PDF
Recover readable pages from a damaged PDF.
OCR PDF
Make scanned words searchable and selectable.
Word to PDF
Convert DOC, DOCX, ODT and RTF documents.
PowerPoint to PDF
Convert presentation slides to PDF.
Excel to PDF
Convert Excel spreadsheets to PDF.
HTML to PDF
Save uploaded HTML with its styles as a PDF.
PDF to JPG
Save PDF pages as JPG images.
PDF to PowerPoint
Turn each PDF page into a presentation slide.
PDF to Excel
Extract tables, or page text, to a workbook.
PDF to PDF/A
Create an archival PDF/A-2 document.
Fill PDF forms
Fill in fields, checkboxes and text.
Rotate PDF
Rotate all pages or a selected range.
Add page numbers
Number all pages or a selected range.
Add watermark
Mark selected pages with a custom text stamp.
Crop PDF
Trim page margins for a cleaner view.
Unlock PDF
Remove a PDF password you already know.
Sign PDF
Draw a signature or upload a photo, remove its background and sign your PDF.
Redact PDF
Permanently remove matching sensitive text.
Compare PDFs
Compare two PDFs and highlight visual changes.
AI Summarizer
Summarize a document into its key points.
UnavailableTranslate PDF
Translate document text into a new, readable PDF.
UnavailablePDF to Markdown
Extract readable text with page headings.
Smart redaction
Find Aadhaar numbers, SSNs, credit cards, names and signature areas. Review and remove sensitive content.
Resize PDF
Change page dimensions to A4, Letter or a custom size.
Resize image
Resize images by dimensions, file size, percentage or preset.
Convert image
Convert images to JPG, PNG or WebP with a preview and adjustable quality.
Exam photo & signature
Set photo and signature dimensions, file size and optional name or date captions.
Resize signature
Remove a signature’s light background and set its dimensions and file size.
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About Password Protect a PDF
Add an opening password to your PDF. Keep a copy of the password.
How it works
- Choose a PDF.
- Enter and confirm a password with at least eight characters.
- Download the protected PDF and keep your password safe.
Common questions
Can I recover a forgotten password here?
No. PDFMomo does not retain your document or password and cannot recover a password you forget.
Does a password redact confidential words?
No. Authorized recipients can read the document after opening it. Redact sensitive content before sharing when it must not be present.
What is the difference between locking and redacting a PDF?
Password protection restricts opening the PDF. Redaction removes selected content from the document. If recipients must never see particular words or images, remove that content before sharing the protected file.