How to Convert Images to PDF — The Complete Guide

Whether you're compiling receipts, scanning documents, or creating a photo portfolio, converting images to PDF is one of the most common tasks on the internet. Here's how to do it properly on every platform.

Why Convert Images to PDF?

PDFs offer several advantages over individual image files:

• Universal format — opens the same on every device
• Multi-page documents — combine multiple images into one file
• Professional appearance — ideal for invoices, reports, and portfolios
• Smaller file size — especially when combining many images
• Password protection — secure sensitive documents

Method 1: Use a Free Online Image to PDF Converter (Recommended)

The fastest way to convert images to PDF is using a browser-based tool.

How to use ImageToolbox Image to PDF:

1. Open the Image to PDF Converter

2. Drag and drop your images (JPG, PNG, WebP, HEIC, etc.)

3. Reorder images by dragging them into your preferred sequence

4. Adjust page settings (orientation, margins, page size)

5. Click Generate PDF and download

Why it's the best option:

• ✅ Supports all image formats (JPG, PNG, WebP, HEIC, BMP, TIFF, SVG)
• ✅ Drag-to-reorder for multi-page PDFs
• ✅ 100% private — files never leave your browser
• ✅ Customize page size (A4, Letter, A3, etc.)
• ✅ No sign-up or installation required

Method 2: Windows (Built-in)

Using Microsoft Print to PDF

1. Open your image in Photos or any viewer

2. Press Ctrl + P (Print)

3. Select Microsoft Print to PDF as the printer

4. Click Print → Choose save location

For multiple images:

1. Select all images in File Explorer

2. Right-click → Print

3. Choose Microsoft Print to PDF

4. Select layout → Print

> Limitation: You can't easily reorder or customize the layout with this method.

Method 3: Mac (Using Preview)

1. Open all images in Preview

2. Select all pages in the sidebar (Cmd + A)

3. Go to File → Export as PDF

4. Choose save location → Save

Tip: Drag to reorder

In Preview's sidebar, you can drag thumbnails to reorder pages before exporting.

Method 4: iPhone & iPad

1. Open the Photos app

2. Select the images you want to convert

3. Tap Share → Print

4. Pinch outward on the print preview to create a PDF

5. Tap Share again to save or send the PDF

Method 5: Android

1. Open the images in Google Photos or Gallery

2. Tap Share → Print

3. Select Save as PDF as the printer

4. Tap the Download icon

Image Format Support

Tips for the Best Results

1. Choose the right page size

• A4 (210 × 297mm) — Standard worldwide
• Letter (8.5 × 11") — Standard in US/Canada
• A3 (297 × 420mm) — For large images or posters

2. Optimize image quality first

• Compress images before converting if file size matters
• Resize images to match your target page dimensions

3. Use correct orientation

• Portrait for documents and vertical photos
• Landscape for wide images and presentations

4. Consider margins

• Add margins for printable documents
• Use zero margins for photo portfolios

Common Use Cases

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Convert your images to PDF right now with our Free Image to PDF Converter — supports all formats, runs entirely in your browser. Need to do the reverse? Check out our PDF to Image Converter.