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AAAI

Productivity · 2024

Fast PDF

Open, read & convert PDFs fast

4.6★ · 152,039 ratings · Android

The Problem

Everyone opens PDFs on their phone — contracts, tickets, textbooks, statements — yet most mobile readers are heavy, slow to launch, and buried in ads. A document viewer should get out of the way, not become a chore.

The Solution

Fast PDF opens files the moment you tap them. It renders large documents smoothly, remembers where you left off, and handles the everyday jobs people actually need: search inside a file, annotate, share, and convert to and from other formats — all in a clean, distraction-free reader.

Technology Used

  • Platform: Native Android (Kotlin)
  • Rendering: A tuned PDF engine for fast, low-memory display of large files
  • Search & annotation: In-document text search, highlights, and notes
  • Conversion: Import and export across common document formats

Results

  • 4.6★ from 152,039 ratings on Google Play — our most-reviewed app
  • Kept fast and lightweight release after release, on real user feedback