OneTimeEvery PDF tool you actually use — running 100% on your machine.
SmallPDF charges up to $15/month, forever, to do things your computer can do for free — and it uploads your documents to their servers to do it. PDFsmith does the same jobs locally, offline, with zero telemetry, for a one-time $29.
PDFsmith in 60 seconds
Everything in the box
Merge, split, rotate, watermark & convert PDFs offline. No uploads, ever.
Merge PDFs
Drag-drop any number of PDFs, reorder them in the list, combine into one file.
Split PDF
Extract any page ranges (1-2 | 3 | 4-6) into separate new PDFs.
Rotate pages
90° / 180° / 270°, all pages or a specific range, batched across files.
Watermark
Text (position, size, opacity, diagonal) or image stamp — batch across files.
Images → PDF
JPG/PNG to PDF, one image per page, reorderable, A4-fit or native size.
Metadata editor
Read and rewrite title, author and subject — something SmallPDF doesn't even offer.
100% offline
All processing happens locally with pdf-lib. No network calls, no uploads, no account.
No telemetry
Your contracts, invoices and records never leave your disk. Zero analytics.
PDFsmith vs SmallPDF
SmallPDF charges $12–15/mo. Here's what actually differs.
| PDFsmith | SmallPDF | |
|---|---|---|
| Price | $29 once | $12–15/month ($144+/yr, forever) |
| Your files | Never leave your machine | Uploaded to their servers |
| Works offline | Yes | No |
| Account required | No | Yes |
| Merge / split / rotate | Yes | Yes |
| Watermark (text + image) | Yes | Pro only |
| Metadata editor | Yes | No |
| Source code | MIT, on GitHub | Closed |
Two and a half months of SmallPDF pays for PDFsmith outright. Everything after that is money you keep.
One price. No asterisks.
Desktop app — pay once, it's yours on your machine forever.
Download PDFsmith
install, then sign in with Whop. Your purchase unlocks it; there is no licence key to enter.
PDFsmith
Windows and macOS. Buy once, download any time — this page always links the current build.
Up and running in three steps
Buy once on Whop
One-time $29. You get the signed Windows installer — no account with us, no subscription to remember to cancel.
Install in one click
Run the installer. No Node, no terminal, no setup. The app opens straight to the tools.
Drop in your PDFs
Merge, split, rotate, watermark or convert — everything happens on your machine, instantly, offline.
Fair questions
Is it really free on GitHub?
Yes. The full source code is MIT-licensed at github.com/bensblueprints/pdf-toolkit-mvp and always will be. Buying gets you the signed Windows installer, 1-click setup and updates — pure convenience, zero lock-in.
Do my PDFs get uploaded anywhere?
No. All processing runs locally with pdf-lib, a pure-JavaScript library. The app makes no network calls at all — you can run it with Wi-Fi off.
What platforms does it run on?
The packaged installer is for Windows. The MIT source runs anywhere Electron does (Windows, macOS, Linux) if you build it yourself with Node 18+.
Can it edit text inside a PDF?
No — and we'd rather tell you that upfront. PDFsmith covers merge, split, rotate, watermark, images-to-PDF and metadata. For rewriting body text inside an existing PDF you still need a full editor like Acrobat.
Is this a subscription in disguise?
No. $29 once. No renewal, no license server phoning home, no "lifetime deal" fine print. The app keeps working forever, even offline.
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More about PDFsmith
Every page we publish about this app — comparisons, personas, platforms and the problems it solves.
App profile
Platforms
Solves
Stop renting. Own PDFsmith.
Merge, split, rotate, watermark & convert PDFs offline. No uploads, ever.
Get PDFsmith — $29 once