Total PDF Control.
Zero Data Tracking.
PDFgo performs intensive PDF operations right in your browser memory. Documents never touch a cloud server. Fast, free, and absolutely private.
100%
Local
∞Files
Unlimited
0ms
Upload Wait
100% Private
& Secure.
Turn on Airplane Mode and test it yourself - files never leave your device. Everything is processed locally, right here in your browser.
Equipped for every task
Everything you need to manipulate, secure, and understand PDFs, seamlessly packaged in an intuitive interface.
PDF Diff Checker
Compare two PDFs side-by-side to find text differences quickly.
Sign Document
Draw or upload your signature to securely sign PDFs entirely offline.
Edit Metadata
View and modify hidden document properties like Author and Title.
PDF to Markdown
Convert PDF documents into structured, formatted Markdown automatically.
How it works & FAQ
Everything you need to know about how PDFgo keeps your files 100% private.
Yes. Unlike traditional PDF tools that force you to upload your sensitive documents to their servers, PDFgo downloads a lightning-fast WebAssembly engine into your browser. All the heavy lifting (merging, splitting, extracting) happens locally using your own device's CPU and memory.
Absolutely. Once the application engines are cached, you can turn off your Wi-Fi or use Airplane Mode. Since PDFgo is a PWA (Progressive Web App), it runs entirely from your local browser storage, allowing you to use every tool seamlessly without an active internet connection.
To guarantee 100% privacy, PDFgo needs to download its specialized 'Workers' and OCR models (like Tesseract) directly into your browser's local cache. This one-time setup ensures that all processing happens on your CPU, so you never have to upload a single byte of your documents to a remote server.
No. Converting complex Office formats like `.docx` or `.pptx` reliably requires a heavy server-side layout engine (like Microsoft Office) which breaks our 100% offline rule. PDFgo remains strictly focused on native, privacy-first PDF manipulation. If your PDF is damaged, however, our Repair tool can often reconstruct it locally.
There are absolutely no hardcoded limits on file size, page count, or usage frequency. The only actual limitation is the amount of RAM available on your local laptop or mobile device.
Stop uploading.
Start doing.
Merge, split, compress, and compare your PDFs completely privately in under a second. Try it now.