Encrypt PDF
Protect a PDF with an AES-256 password.
Encrypt PDF
Drop your PDF here
or choose from your device
25 MB per file · 100 MB total · Up to 500 pages
Your files are processed on this device.
Your files are ready.
What would you like to do?
PDF to Word
Convert PDF text, images, and tables into DOCX.
ConvertEncrypt PDF
Protect a PDF with an AES-256 password.
SecurityDecrypt PDF
Remove PDF encryption using its current password.
SecurityMerge PDFs
Combine PDFs in the order you choose.
OrganizeSplit PDF
Split a document into smaller PDFs.
OrganizeExtract pages
Save selected pages as a new PDF.
OrganizeRemove pages
Delete selected pages from a PDF.
OrganizeReorder pages
Rearrange pages or duplicate a page.
OrganizeReverse pages
Put the last page first and reverse the rest.
OrganizeRotate PDF
Turn all pages or just the pages you select.
OrganizeCrop pages
Trim visible margins from your pages.
EditResize pages
Fit each page onto A4, Letter, or Legal paper.
EditMultiple pages per sheet
Arrange two or four pages on one sheet.
OrganizeAdd watermark
Stamp custom text on selected pages.
EditAdd page numbers
Number pages along the bottom edge.
EditEdit metadata
Set the title, author, subject, and keywords.
EditRemove metadata
Remove document properties and XMP metadata.
EditFlatten form fields
Turn existing form appearances into page content.
EditRemove annotations
Remove comments, links, and form widgets.
EditOptimize PDF
Rewrite the PDF with compact object streams.
EditImages to PDF
Combine JPG and PNG images into a PDF.
ConvertPDF to text
Extract selectable text into a UTF-8 text file.
ConvertPDF to PNG
Render PDF pages as high-quality PNG images.
ConvertOffice to PDF
Convert Word, slides, spreadsheets, and more.
ConvertNo matching tools. Try another search.
A simpler way
to PDF.
Choose a tool
Find the operation you need, then add your files.
Set the details
Select pages, arrange files, or customize the result.
Save your result
Download your new files individually or together as a ZIP.
A few things to know.
Does this include every Stirling-PDF feature?
No. These tools are an independent, browser-only implementation of compatible PDF workflows. Server OCR, certificate signing, and permanent redaction are not included.
Will every PDF work?
Use valid PDFs with at most 500 pages. Use Decrypt PDF with the correct password before editing. Encrypted documents are not supported by the editing tools. Page copying and rearrangement may not preserve bookmarks or interactive forms; flatten filled forms first. Editing a digitally signed PDF invalidates its signature.
Does Optimize PDF always make files smaller?
No. It compacts PDF structure without reducing image quality. Already optimized PDFs may not shrink; in that case you receive the original file. It does not downsample scanned images.
Are my documents sent to a server?
No. Processing happens in this browser. Fonts and libraries may download from this website, but your documents stay on your device. Closing or reloading the page clears your current workspace.
Supported features and limits
Files and passwords stay in your browser. Permissions depend on the PDF reader and do not prevent screenshots. Decrypt an already encrypted PDF first.