How to Convert JPG to PDF: A Simple Step‑by‑Step Guide

Whether you need to share a photo, archive a receipt, or compile a portfolio, turning a JPG image into a PDF file is a handy skill. In today’s quick guide I show you how to change a JPG to PDF on both computers and iPhones, using free tools and the reliable Tenorshare PDNob software.

Why Convert JPG to PDF?

PDF documents preserve the original layout, are universally readable, and can combine multiple images into a single file. This makes them ideal for:

Because PDFs keep the image quality intact, you won’t lose any detail when you convert your photos.

Method 1: Using Tenorshare PDNob on Windows or macOS

Tenorshare PDNob is a lightweight utility designed for batch image conversion. It handles JPG to PDF conversion swiftly and offers extra features such as image compression and watermark removal.

Step‑by‑step tutorial

  1. Download Tenorshare PDNob from the official site (use the link here).
  2. Install and launch the program.
  3. Click “Add Files” and select the JPG(s) you want to convert.
  4. Choose PDF as the output format.
  5. Adjust optional settings:
    • Image size – keep original or resize for smaller PDFs.
    • Page orientation – portrait or landscape.
    • Compression – reduce file size without noticeable loss.
  6. Press “Convert”. The PDF will be saved to your chosen folder.

The entire process takes seconds, even for dozens of images. PDNob also lets you merge several JPG files into one PDF, which is perfect for creating photo albums or reports.

Method 2: Converting JPG to PDF Directly on iPhone

iPhone users can create PDFs without installing any third‑party app. This built‑in method works on iOS 13 and later, and it’s ideal for quick conversions while on the go.

How to Convert Photos to PDF on iPhone

  1. Open the Photos app and select the JPG image you want to convert.
  2. Tap the Share icon