A4Pad App Icon

    A4Pad for iOS

    iPhone iPad

    Convert Images to PDF on iPhone & iPad

    Merge photos, screenshots, and scans into a single, standardized A4 PDF — offline, no account needed. Every page follows the standard A4 format, making composition, merging, and sharing effortless. A4Pad is the simplest way to convert and combine images into PDF on iOS.

    See It in Action

    The Problem

    You have screenshots, photos, or scans on your iPhone or iPad that need to become a PDF. Maybe it's receipts for an expense report, lecture slides you photographed, or research screenshots you need to share as one document. But iOS doesn't offer a straightforward way to do this.

    • ✕Screenshots scattered across your Camera Roll with no structure
    • ✕No simple way to merge multiple images into one PDF on iOS
    • ✕Scanner apps that add hurdles just to export
    • ✕Notes app doesn't let you import and arrange photos as pages
    • ✕Sharing multiple images as one document feels impossible

    The Solution: A4Pad

    A4Pad removes the noise between your images and a finished PDF. Import any photo, screenshot, or scan — it's instantly placed on a standard A4 page. Because every page shares the same format, combining, reordering, and sharing documents becomes effortless. Add notes in between, and export the whole thing as a single PDF.

    • Convert any image, photo, or screenshot to PDF in seconds
    • Merge and combine multiple images into a single PDF document
    • Works completely offline — no account, no cloud
    • Native iOS app optimized for both iPhone and iPad
    • Add handwritten notes between pages with Apple Pencil
    • Organize documents into notebooks and collections

    How to Convert Images to PDF — Step by Step

    1

    Import Your Images

    Open A4Pad and tap the import button. Choose photos, screenshots, or scans from your Camera Roll or Files app. Each image is placed on its own standard A4 page (1240 × 1754 px at 150 DPI).

    2

    Arrange & Combine

    Reorder pages by dragging them in the thumbnail grid. Add more images, insert blank ruled or dotted pages for notes between them.

    3

    Annotate If Needed

    Use Apple Pencil or your finger to highlight, draw, or write on any page. Mark up screenshots, circle key details, add handwritten notes.

    4

    Export as PDF

    Tap export and your entire notebook becomes a single, shareable PDF. Send it via AirDrop, Mail, Messages, or save to Files.

    What You Can Convert

    Screenshots from any app
    Photos of whiteboards & documents
    Scanned receipts & invoices
    Lecture slides & course materials

    Offline & Private

    A4Pad works entirely offline. Your images and documents never leave your device. No account required, no cloud uploads. Convert images to PDF with complete privacy.

    Start Converting

    Available on the App Store for iPhone and iPad.

    Get A4Pad on the App Store