Today we’re launching PDFAmora, a brand new offline PDF toolkit from NDT Studio. One app, eight tools, zero data collection — everything you need to handle PDF files on your phone, all without sending a single page to the cloud.
PDFAmora is now available as a free download on both Google Play and the Apple App Store.
Why we built PDFAmora
Most PDF tools online ask you to upload your file to a server. That’s a bad fit for the documents people actually work with every day — contracts, payslips, ID scans, lease agreements, medical reports. We wanted an app that does the boring PDF jobs without ever sending those files off the device.
PDFAmora is built around one rule: your files never leave your phone. Every operation runs locally. There are no accounts, no analytics, no tracking, and nothing is uploaded for processing. If your device is offline, PDFAmora still works.
Eight tools in one app
PDFAmora bundles the most common PDF tasks into a single, lightweight app:
- Merge PDF — Combine multiple PDF files into one document. Drag and drop to reorder pages before merging.
- Split PDF — Extract specific page ranges or split into individual pages with a visual page selector.
- Compress PDF — Reduce file size with three quality levels (Low, Medium, High) while keeping the document readable.
- Convert — Turn PDF pages into PNG or JPG images, or build a PDF from photos and scans.
- Rotate PDF — Rotate pages by 90°, 180°, or 270°. Apply to a single page or to the whole document.
- Watermark — Add text watermarks with six position options including diagonal, plus customizable size and opacity.
- Protect PDF — Lock PDFs with password protection so only people with the password can open them.
- Recents & history — Quickly reopen files you’ve worked with and review past operations.
Privacy note: PDFAmora performs every action locally on your device. There are no uploads, no servers, no accounts, no analytics, and no telemetry. The app does not need an internet connection to work.
Available in 11 languages
PDFAmora ships with a fully localized interface in eleven languages so the app feels native wherever you are: English, Vietnamese, Chinese, Hindi, Spanish, French, Arabic, Bengali, Portuguese, Russian, and Japanese. The app picks up your device language automatically — you don’t need to configure anything.
Who is PDFAmora for?
If you regularly handle PDF documents on your phone, PDFAmora is built for you:
- Professionals who need to merge contracts, redact pages, or password-protect a quote before sending it.
- Students who scan lecture notes and want to combine, compress, or convert them for sharing.
- Freelancers who deal with invoices, briefs, and proposals and need a fast, on-device toolkit.
- Privacy-conscious users who don’t want their personal documents sitting on a third-party server.
How to get started
Install PDFAmora on your phone, open the app, and tap whichever tool you need. There is no sign-up, no free trial, and no paywalls hiding the real features. Pick a PDF (or photos for the convert tool), choose your options, and tap to run.
Because every operation is local, the result is also instant — no upload bar, no waiting for a server queue. The output is saved straight to your device or shared from PDFAmora using the system share sheet.
Download PDFAmora — free, offline, private
Eight PDF tools in one app. Files never leave your device. Available in 11 languages on Android and iOS.
Google Play App StoreYou can read the full feature list and download links on the PDFAmora product page. We’d love to hear what you think — drop us a note if you have feedback or feature requests.