Batches of dozens of files
Select a whole batch and let it run through. No uploading and downloading one file at a time. Watermarking, compressing, or converting a folder full of scans takes minutes.
DESKTOP · OFFLINE · FREE
Put the PDF toolkit
Put the PDF toolkit
on your own computer
Everything the web version does, running locally: 28 PDF and image tools that keep working with the network unplugged. Batches of dozens of files, documents of several hundred megabytes, password-protected PDFs — the things a browser cannot do, the desktop app can.
Download for WindowsWindows 10 / 11 · 64-bit · 43 MBDownload for macOSmacOS 10.15+ · Universal · 48 MB
Heads-up: the desktop app’s interface is currently in Chinese only. Every tool works the same, and file dialogs use your own system language, but menus and labels are not yet translated. An English interface is planned.
Reading this on a phone? The desktop app only installs on a computer. Use the web version for the files you have now, or send this link to your computer.
✓ Fully offline✓ No file upload✓ No sign-in✓ Batch processing
What a browser cannot do
Why install the desktop app
The web version stays free and capable — use it for everyday small files.
These four situations are where the desktop app is clearly better.
Documents of several hundred MB
A browser has to read the whole file into memory, so large files stall or crash the tab. The desktop app reads from disk, and the process is the same at any size.
Encryption and password removal
Set an AES-256 open password, or remove restrictions from a file whose password you know. Both are desktop-only; the web version does not offer them.
Works with no network
Once installed it never needs the internet. Air-gapped machines, restricted environments, or travelling without signal — every tool still works.
A look inside
Pick a tool on the left, set options on the right
No extra steps: choose files, adjust options, press start. Results land next to the source file.
Full feature list
28 tools, all running on your machine
The same tools as the web version, with the same options.
PDF pages
- Merge PDF
- Split PDF
- Extract pages
- Delete pages
- Rotate pages
- Reorder pages
- Insert pages
- Crop pages
- Resize pages
PDF processing
- Compress PDF
- Text watermark
- Image watermark
- Add page numbers
- Clean metadata
- Encrypt PDFDesktop only
- Remove passwordDesktop only
Conversion
- PDF to images
- PDF to long image
- PDF to text
- Images to PDF
Image tools
- Watermark images
- ID card combine
- Stitch images
- Split image
- Compress images
- Convert format
- Crop and rotate
- Clean EXIF data
Installing
Unzip and run — nothing is written to the registry
Portable by design. Delete the folder and nothing is left behind.
Windows
- Download
59612-pdf-toolkit-1.0.0-win-x64.zip - Right-click and extract to any folder (do not run it from inside the zip)
- Double-click
59612PDF工具箱.exe
If SmartScreen shows "Windows protected your PC" on first run, choose More info → Run anyway. The app simply has no purchased code-signing certificate; it is not malware.
macOS
- Download
59612-pdf-toolkit-1.0.0-macos.dmg - Open it and drag the app into your Applications folder
- On first launch, right-click → Open, then confirm
Same reason: there is no Apple developer signature. After opening it this way once, a normal double-click works.
Questions
Before you install
Does it cost anything? Any ads?
It is free. No ads, no in-app purchases, no limits on how many files you process or how large they are.
Are the results identical to the web version?
Very close. Both offer the same tools with the same options, but the desktop app uses a Python PDF engine while the web version uses pdf-lib and Canvas in the browser, so compression ratios and font rendering can differ slightly on a few tools.
Can it turn a scanned document into editable text?
No. "PDF to text" extracts an existing text layer; a scan is just an image and has none. The app says so clearly and suggests "PDF to images" instead. Reading text out of images needs OCR, which would multiply the download size, so it is not included in this version.
Can it crack a PDF password?
No, and it is not planned. "Remove password" only works on files whose password you already know — enter it, and the restrictions are removed so you can edit the file.
My file got bigger after compression?
Re-compressing an already-compressed PDF often does that. When it happens the app tells you the size did not shrink and discards the result, rather than leaving a "compressed" file larger than the original.
Why is the download over 40 MB?
It bundles a complete PDF rendering engine and Python runtime, so you do not have to install anything else. It expands to about 100 MB.
Is there a Linux build?
No prebuilt package yet, but the source is cross-platform and runs on Linux once Python and the dependencies are installed.
Just a small file and nothing to install? Use the web version — it does not upload your files either.