Edit, sign, and redact PDFs. Your documents never leave your machine.
A fast, offline PDF studio built in Rust. No uploads. No accounts. No subscription.
Windows installer not published yet · one-time license keys are not for sale yet · Linux build coming next
Air-gapped by design
Paperkeep makes zero network calls after download. No uploads, no accounts, no telemetry. Pull the ethernet cable and everything still works — that's the whole point.
True redaction
Most tools draw a black box over your text and call it a day — the words are still in the file. Paperkeep scrubs the underlying glyphs from the content stream, character by character. Covered content cannot be selected, copied, or extracted.
$15 forever
One key, all your machines, no expiry. Adobe wants ~$240 every single year for the privilege of uploading your documents to their cloud. Keep your $225.
Everything you actually do with PDFs
$15. Once. That's it.
The whole app is free — the $15 key just removes the small footer watermark from exports. Works on all your machines, verified offline, never expires. Checkout is not open yet — check back soon.
Buying opens soonNo payment link is live yet. When sales open, Lemon Squeezy will handle checkout as merchant of record.
Questions people actually ask
Why is the free export watermarked?
The entire app is free to use — every feature, forever. Free exports add one small footer line on each page. A $15 one-time key removes it. That's the whole business model: no trials, no locked features, no subscription.
Does it phone home?
No. The license key is verified offline with Ed25519 public-key cryptography compiled into the binary. Paperkeep makes no network requests after you download it — you can verify that with a firewall or packet capture.
What do you do with my documents?
Nothing, because we never see them. Your PDFs are opened from your disk and saved to your disk. There is no server component at all.
Windows says "Windows protected your PC" — is this malware?
That's Microsoft SmartScreen flagging any new unsigned app. Click "More info" → "Run anyway". A code-signing certificate costs several hundred dollars a year; once sales justify it, builds will be signed and the warning disappears.
Refunds?
It's $15 and the whole app works before you pay, so you know exactly what you're buying. If you're unhappy anyway, reply to your receipt email within 30 days and you'll get a refund, no questions asked.
How many machines can I use my key on?
All of yours. The key is tied to your email, not your hardware. Honor system: one key per person.