PDF reader app maker

A PDF reader app maker lets you build a reader that does a few things very well instead of fifty things badly: open fast, remember your page and keep your bookmarks. Describe how you read, the AI agent writes the app, you try it in the emulator preview with a PDF link, then download the APK and open real files on your phone. It is also a neat way to ship your own documents as an app.

What your PDF reader app will have

From the idea above, the agent builds:

• Recent files — each document with its name, page count, the page you stopped at and when you last opened it.
• Open PDF — a button that opens the phone's file picker, so any PDF on the phone can be read.
• Reader — smooth scrolling, pinch-to-zoom, a page counter and a switch between vertical scroll and page-by-page swipe.
• Go to page — type a page number and jump straight there.
• Bookmarks — mark a page, add a short note, and find it again from the Bookmarks list for that file.
• Favorites and share — star the documents you open often and send a file to any app from the share menu.

Every file reopens at the last page you read, which is the feature people notice most.

Features you can ask for

• A Library of your own PDFs, bundled with the app or loaded from links you host, grouped by subject.
• Password-protected PDFs: a prompt for the password before the file opens.
• Reading progress bars on the Recent list.
• A focus mode that hides every button until you tap the page.
• Keep the screen on while reading, with a timer that turns it off after a while.
• Notes per document, saved on the phone, with a search across all notes.
• A dark app frame and large controls for reading at night.

Ideas to make it yours

Teachers who share PDFs with video lessons should read the e-learning app guide. If you need to turn paper into PDFs, the photo editor and scanner guide covers scanning pages with the phone camera.

Get it on your phone

1. Press Build this PDF reader app and sign in with Google.
2. Give the agent a link to a sample PDF and try the reader, page jump and bookmarks in the emulator preview.
3. Ask for changes in plain words: "bigger page counter", "hide the top bar while reading", "sort recent files by name".
4. Press Download APK, install it on your Android phone and open a few real PDFs from your Downloads folder.
5. For Google Play, build the signed APK and AAB from the same menu; the APK builder page explains signing.

Test with a heavy file. A 300-page scanned textbook behaves very differently from a two-page form, so open one of each on your phone and tell the agent about any slow page turns.

When to build your own PDF reader

General readers are fine for the odd file, but they are not built around your documents. A school, a training team or a small business that shares the same PDFs again and again gets a lot from its own app: the right files are already there, grouped the way people look for them, with your name on the launcher. Readers who struggle with busy screens get a calm, simple tool. And students who live in PDFs get bookmarks and notes that work the way they study. Keep the first version small, try it with real files, and add one feature at a time.

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