Merge PDF
Combine multiple PDFs into one file.
OpenFree · No install · Privacy-first
Process PDFs locally in your browser
Your files stay on your device—no upload for core tools. Merge, split, compress, convert, and more—all in one place.
No install, no sign-up for basic use. Open a tool, add your file, and get results in seconds. Privacy-first and free to use during launch.
All tools
Pick one and start. Merge, split, compress, convert, protect, and more.
Split PDF
Split one PDF into single-page files.
OpenCompress PDF
Reduce size with stream compression (same baseline in Rust/WASM and browser).
OpenText annotation
Add fixed-position text notes to pages.
OpenAdd stamp (first page)
Place a visible signature block on the first page.
OpenDOCX to PDF
Convert DOCX to PDF locally.
OpenImage to PDF
Pack multiple images into a PDF.
OpenPDF to Image
Render PDF pages to image files.
OpenExtract Images from PDF
Extract embedded images from a PDF.
OpenProtect PDF
Encrypt PDF with user password.
OpenUnlock PDF
Remove PDF protection; enter password if the file is locked.
OpenRotate PDF Pages
Rotate selected page ranges.
OpenRemove PDF Pages
Delete pages by range expression.
OpenExtract PDF Pages
Keep only selected pages.
OpenReorder PDF Pages
Rebuild PDF with custom page order.
OpenHTML / Text to PDF
Turn HTML or plain text into a simple text-layout PDF.
OpenAdd Watermark
Add repeated text watermark to pages.
OpenAdd Page Numbers
Insert page numbers to every page.
OpenHeader & Footer
Add custom header and footer with optional {{page}} placeholder.
OpenOverlay PDF
Overlay/underlay one PDF onto another.
OpenCompare PDF
Compare text and page count differences.
OpenBooklet layout
Reorder pages for saddle-stitch booklet printing.
OpenPage Fit & Margins
Normalize page size, scale policy and margins.
OpenCrop PDF Pages
Set crop box by margins (trim visible area).
OpenEdit PDF Metadata
Update PDF title, author and other metadata fields.
OpenClear PDF Metadata
Remove document metadata fields and embedded metadata streams.
OpenConfidentiality stamp
Add a confidentiality stamp or header bar (visual overlay).
OpenAuto Redact Sensitive Data
Detect and redact phone, email, ID numbers by pattern.
OpenText to PDF
Create a PDF from plain text (quick draft).
OpenPDF guides
Step-by-step help for the most common PDF tasks.
How to merge PDF files without uploading them
Merge multiple PDF files in the browser without sending them to a server. Use this workflow for reports, invoices, application packets, and document bundles.
Read guideHow to compress a PDF before email or upload
Reduce PDF size in the browser before sending by email or uploading to a portal. Best for oversized scans, reports, and image-heavy PDFs.
Read guideHow to add a watermark to a PDF
Add a text watermark to a PDF for internal use, draft review, or distribution control. Choose rotation, opacity, and repeated tiling across the page.
Read guideHow to remove the open password from a PDF you own
Remove the open password from a PDF you are authorized to edit, so the file is easier to reuse, print, or archive.
Read guideHow to convert DOCX to PDF in the browser
Convert a DOCX file to PDF directly in the browser. Use this for proposals, reports, letters, and submission-ready documents.
Read guideHow to add page numbers to a PDF
Add page numbers to reports, contracts, appendices, and review drafts. Place numbers consistently before printing, sharing, or filing.
Read guideWhat's new
Recent improvements you might notice.
- Process PDFs locally in your browser. Common tasks like merge, split, compress, protect, and unlock do not require file upload.
- Word to PDF stays local. Conversion uses a local engine for better layout and privacy.
- Clearer messages. When a file is too large or the format isn't supported, you'll see a short explanation and what to do next.
How we protect your privacy
Transparency about where your data is processed and stored.
- Local processing: Core PDF operations (merge, split, compress, protect, unlock, rotate, pages, watermark, etc.) run in your browser. Your files are not uploaded for these tools.
- Server use: Some features (e.g. high-fidelity Word→PDF, Typst, or future OCR) may use a backend. Those requests are only sent when you use the relevant option.
- No persistent storage: We do not store your documents on our servers. Processed files stay in your browser until you download or leave the page.