Available on Google Play
Duck Labs · Productivity Tools
20+ PDF tools in your pocket — merge, compress, convert, scan and sign, all completely offline, with nothing ever shared. Install once, use it forever, free.
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Why Duck PDF?
No subscription, no hidden charges — just the tools that actually get the job done.
Convert, edit, merge, compress and much more — all in a single place.
Your files are processed right on your device — nothing is ever uploaded.
A simple interface with large buttons — anyone can use it without a tutorial.
Most tools work perfectly with no internet connection required.
A small install size that stays out of your storage's way.
Open the app and start converting immediately — no account required.
Conversions keep your original layout, fonts and images intact.
New tools and refinements ship on a steady schedule.
Just 3 steps
Tap Merge, Compress, Convert, or any of the 20+ tools right from the home screen.
Choose from your gallery, camera, or files app — it only takes one tap.
Your result is ready instantly — save it straight to your device or share it with anyone.
The full toolkit
Side by side
Most "free" PDF tools quietly upload your files or lock features behind a paywall. Duck PDF Converter doesn't.
| Capability | Duck PDF Converter | Typical free PDF apps |
|---|---|---|
| Works with no internet connection | ✔ Yes | Often requires Wi-Fi |
| Files uploaded to a server | ✔ Never | Frequently, for processing |
| Subscription required | ✔ Never | Common after a free trial |
| Tools included | 20+ in one app | Usually 3–5 per app |
| Account or sign-up needed | ✔ No | Often required |
File compatibility
Import from common document and image formats, and export a clean, standard PDF every time.
DOCX
XLSX
PPTX
JPG / PNG
HTML
TXT
Privacy by design
Duck PDF Converter was built around one rule: a PDF tool should never need to see your files. Every merge, compress, or conversion runs locally on your device — nothing is transmitted, logged, or stored anywhere else.
On-device processing
Every tool runs entirely on your phone — no servers involved.
No file uploads, ever
Your PDFs and images never leave your device, at any step.
Password protection built in
Lock sensitive documents with the Lock PDF tool in a single tap.
Zero data collection
No accounts, no analytics tied to your files, no third-party trackers reading what you convert.
Downloads
PDF tools
Average rating
Offline processing
What users say
12,842 reviews
Ritesh Kumar
Every tool works even without internet — genuinely useful. It saved me so much time turning my college notes into PDFs.
Priya Sharma
The Compress PDF tool shrank my huge file in seconds, and the quality stayed exactly the same.
Amit Verma
I use Signature PDF and Lock PDF for office documents every single day — it's incredibly smooth.
Simran Kaur
The interface is so simple that even my mom uses Scan to PDF without anyone showing her how.
Frequently asked questions
Yes, it's completely free. No subscription, no hidden charges — all 20+ tools are free forever.
Yes — most tools work fully offline because all processing happens directly on your device.
No. Your files are processed only on your own device and are never uploaded to any server.
No sign-up is needed. Install the app and start using every tool right away.
Word, Excel, PowerPoint, images, HTML and plain text can all be converted to and from PDF.
There's no artificial cap — the only practical limit is your device's own storage and memory.
20+ tools • 100% offline • free forever
Get in touch
For support, feedback, or anything else about Duck PDF Converter, reach the team directly.
pakrefersystem@gmail.com