Files never leave your device
Processed in your browser using WebAssembly.
No signup. No account. No quotas.
Open and use. Nothing to forget, nothing to leak.
256-bit encryption standards
Same crypto primitives as your password manager.
We count page views at our edge. That's it.
No analytics scripts in the page. No trackers.
Files never leave your device
No signup. No account. No quotas.
256-bit encryption standards
Tools · 14 / 15 shipped
Every tool. Same promise.
Each one runs entirely in this tab. Click a tool to start — there's nothing else to set up.
Popular
Merge PDFs
Combine any number of PDFs into one. Drag to reorder pages.
● LOCAL
Open
JPG to PDF
Bundle photos, scans, and screenshots into a single PDF.
● LOCAL
Split PDF
Extract a range, split by bookmarks, or burst every page.
● LOCAL
Rotate PDF
Fix scans, reorder pages, delete pages — visual editor.
● LOCAL
PNG to PDF
Convert PNG images into clean, properly sized PDF documents.
● LOCAL
PDF to JPG
Export pages as JPG images at any DPI you need.
● LOCAL
PDF to PNG
Export pages as lossless PNG images at any resolution.
● LOCAL
Add Watermark
Add text, logos, or visible signatures. Stamp every page.
● LOCAL
Add Page Numbers
Number your pages with customizable position and format.
● LOCAL
Reorder Pages
Drag and drop to rearrange pages in any order you need.
● LOCAL
Delete Pages
Remove unwanted pages from any PDF document instantly.
● LOCAL
Extract Pages
Pull specific pages out of a PDF into a new document.
● LOCAL
Compress PDF
Shrink large PDFs with image down-sampling and metadata stripping.
● LOCAL
Protect PDF
Add password protection to any PDF document.
● LOCAL
Unlock PDF
Remove password protection from PDFs you have access to.
● LOCAL
How it works
Three steps. Zero servers.
STEP 01
You choose a file
It loads into memory in this browser tab — same way an image would when you preview it.
navigator.platform · local fs
STEP 02
WebAssembly does the work
A vetted PDF engine compiled to WASM runs inside the page sandbox. No JS eval, no remote code.
pdf-lib · client-side
STEP 03
You download the result
The output exists only as a blob URL. Close the tab and every byte is gone — including the original.
Blob URL · single-use
How it works
Three steps. Zero servers.
STEP 01
You choose a file
It loads into memory in this browser tab — same way an image would when you preview it.
STEP 02
WebAssembly does the work
A vetted PDF engine compiled to WASM runs inside the page sandbox. No JS eval, no remote code.
STEP 03
You download the result
The output exists only as a blob URL. Close the tab and every byte is gone — including the original.
Privacy by architecture
You can't leak
what you never collect.
Most “free” PDF tools upload your file to a server, work on it there, and trust you'll believe the deletion policy. We don't have a server. There is no policy because there's no place for your file to go.
Disconnect your wifi mid-task
Everything still works. The processor was already loaded.
Open dev-tools → Network tab
Watch for zero outbound requests. We don't even fetch fonts at runtime.
Read the source on GitHub
Every release is reproducible from a tagged commit. Audit log is public.
~/pdf-cloak/audit.log
14:02:11 open invoice-q3.pdf (2.6 MB)
14:02:11 load pdf-lib · ✓ verified
14:02:12 exec compress() img-down=144dpi
14:02:14 net 0 requests · 0 bytes sent
14:02:14 save invoice-q3.compressed.pdf (620 KB)
14:02:14 free buffer wiped session = 0
● SESSION COMPLETE · NO TRACES
Privacy by architecture
You can't leak what you never collect.
We don't have a server. There is no deletion policy because there's no place for your file to go.
~/pdf-cloak/audit.log
14:02:11 open invoice-q3.pdf (2.6 MB)
14:02:11 load pdf-lib · ✓ verified
14:02:12 exec compress() img-down=144dpi
14:02:14 net 0 requests · 0 bytes sent
14:02:14 save invoice-q3.compressed.pdf (620 KB)
14:02:14 free buffer wiped session = 0
● SESSION COMPLETE · NO TRACES
FAQ
Questions we get a lot.
FAQ
Questions we get a lot.
Drop a file anywhere on this page.
That's the entire onboarding.
No “start free trial.” No “create your workspace.” Just your PDF and your browser.
Drop a file.
That's the onboarding.
Just your PDF and your browser.