PDF Plain and Simple

Every PDF tool you actually need, running entirely on your phone. PDF Plain and Simple is a complete set of PDF tools with no ads, no subscriptions, no watermarks on your output, and no account. Your files are never uploaded anywhere: the app does not even request internet access, so nothing could leave your device if it tried.

Every tool is unlocked from the first launch. There is no premium version, because there is nothing held back to sell you.

Key Features

• Fast, smooth PDF reader with light, dark and system themes
• Merge multiple PDFs into one
• Split by page range or every N pages
• Reorder, rotate, delete and extract pages
• Insert blank pages and add page numbers
• Compress large PDFs to shrink the file size
• Add or remove password protection
• Add watermarks to your documents
• Fill and flatten PDF forms
• Export any page as an image
• Turn camera photos or gallery images into a PDF, with crop and rotate before converting
• Highlight, draw and add text notes
• Save your signature once, then stamp it on any document

How It Works

1. Open a PDF from your library, another app's share sheet, or straight from a file manager
2. Pick a tool: organize, annotate, sign, protect, or convert
3. Save the result to your device or share it on

No sign-up screen, no upload progress bar, no "processing on our servers." Everything happens locally, which also means every tool works with no connection at all: on a plane, in a basement, anywhere.

Why Choose PDF Plain and Simple

• Offline by design: no internet permission, so your documents stay yours
• No ads, ever: no banners, no full-screen interruptions, no video ads between pages
• No tracking and no analytics of any kind
• No account required and no cloud behind anything
• Free with every feature included, supported by an optional donation link in Settings

Private by Construction

Most free PDF apps pay for themselves with your attention or your data. This one does neither. Because the app cannot reach the network, privacy is not a policy you have to trust; it is a property of the software you can verify yourself in Android's app settings, where the permission list has no internet entry.

Built for Everyday Documents

• Scan a receipt into a PDF with your camera and file it away
• Sign a lease or contract and send it back in a minute
• Merge a stack of statements into one document
• Compress a form that is too big to email
• Password-protect anything sensitive before you share it
• Pull one page out of a hundred-page manual as an image

One App Instead of Five

Reader apps that cannot edit, editors that cannot sign, converters that upload your files to someone's server: the usual answer is a folder full of PDF apps. PDF Plain and Simple puts the whole set of PDF tools in one place, so viewing, organizing, signing, converting and protecting are all the same download.

Built by an indie developer who got tired of "free" PDF apps that bombard you with full-screen ads, fake premium upsells, and surprise subscriptions. PDF Plain and Simple is free now and will stay that way. If you would like to support development, there is an optional donation link in Settings.