How to Combine Multiple Images Into One PDF

๐Ÿ“… June 20, 2025  |  โฑ๏ธ 6 min read

You have three photos of your passport, a scan of a utility bill, and a screenshot of your bank statement. You need to send them all as a single PDF file for a visa application, a rental agreement, or an insurance claim. Sending five separate image files looks unprofessional and some portals only accept a single PDF.

The solution is to combine all of your images into one PDF document. This guide will show you how to do it in seconds, for free, without installing any software. Everything runs in your browser โ€” your images never leave your computer.

Why Combine Images Into a PDF?

There are many situations where a single PDF is better than a folder full of image files:

Scanned Documents

When you scan your ID card, passport, driver's license, or other identification documents, you get one image per scan. Combining them into a single PDF makes it easy to email or upload as one complete set. This is especially common for:

  • Visa and passport applications
  • Rental agreements and tenant background checks
  • Insurance claims with multiple supporting documents
  • Job applications that require ID verification

Receipts and Invoices

Expense reports often require attaching receipts. If you take photos of five receipts with your phone, combine them into one PDF before submitting. Your finance team will thank you โ€” one file to download instead of five.

Photo Portfolios

Photographers, designers, and artists often send portfolios as a single PDF. The recipient can scroll through the document in any PDF reader without opening separate image files.

Screenshots Into a Report

If you are documenting a software bug, creating a tutorial, or compiling research, you might take multiple screenshots. Combining them into a PDF creates a single, paginated document that is easy to share and print.

University and Job Applications

Many online application portals accept only a single PDF upload. Combining your transcripts, recommendation letters, personal statement, and certificates into one PDF file ensures nothing is missed.

Supported Image Types

Our JPG to PDF tool supports the most common image formats:

  • JPG / JPEG โ€” The most common format for photos and scanned documents. Almost all phone cameras save photos as JPG.
  • PNG โ€” Common for screenshots, graphics, and images with text. PNG files tend to be larger than JPG for the same image. Use the PNG to PDF tool for PNG files.

If you have images in other formats (HEIC from iPhones, WebP, BMP, TIFF), convert them to JPG or PNG first using our image conversion tools, then combine them into a PDF.

How to Combine Images Into a PDF โ€” Step by Step

Follow these simple steps to combine multiple images into a single PDF using our JPG to PDF tool.

Step 1: Open the JPG to PDF Tool

Navigate to the JPG to PDF page. You will see a file upload area. The tool processes everything in your browser โ€” no files are uploaded to any server.

Step 2: Upload Multiple Images

Click the upload area or drag and drop your images onto it. You can select multiple files at once by holding Ctrl (Windows) or Cmd (Mac) while clicking on files in the selection dialog. The tool will accept JPG and JPEG images.

For PNG images, use the PNG to PDF tool which works the same way but accepts PNG files.

Step 3: Reorder the Images

After uploading, the images appear as thumbnails in the order they were selected. You can drag and drop them to rearrange. Place them in the order you want them to appear in the final PDF โ€” page 1 first, page 2 second, and so on.

Step 4: Choose Page Size

You have three options for the PDF page size:

  • A4 โ€” 210 x 297 mm. The standard page size in Europe, Asia (except the Philippines), Africa, and most of the world. Use this if your recipients are outside the US and Canada.
  • Letter โ€” 8.5 x 11 inches. The standard page size in the United States and Canada. Use this for US-based applications, government forms, and most US employers.
  • Fit to image โ€” Each page is sized exactly to match the image dimensions. This is the best choice if your images have mixed sizes (for example, a mix of portrait and landscape photos, or a mix of standard document scans and wide screenshots). Each image gets its own page that exactly matches its aspect ratio.

When in doubt, choose "Fit to image" โ€” it accommodates any image size without cropping or white space issues.

Step 5: Click Convert

Click the convert button. The tool processes all images simultaneously and assembles them into a single PDF. Processing takes one to five seconds for most files.

Step 6: Download

A download button will appear. Click it to save your combined PDF. The file will contain one page per image, in the order you arranged them.

Page Size Guide

Choosing the right page size matters because it affects how the recipient sees your document. Here is a quick guide:

A4 โ€” Use for international applications, EU government forms, UK universities, and most non-US recipients. A4 is slightly taller and narrower than Letter.

Letter โ€” Use for US and Canadian applications, US government forms, American employers, and Canadian institutions. Letter is slightly shorter and wider than A4.

Fit to image โ€” Use when your images have different sizes or orientations, or when you want the PDF to match the original images exactly without any padding or cropping.

No Image Limit

Our tool does not enforce a specific limit on the number of images you can combine. However, browser memory is the practical constraint. A PDF with 100 images at 4 MB each would be very large and may slow down your browser. For large batches, consider combining in smaller groups and then merging the resulting PDFs using the Merge PDF tool.

Tips for Best Results

Follow these tips to get a professional-looking PDF every time:

Scan at 300 DPI

When scanning documents, use 300 DPI (dots per inch). This is the standard resolution for printing and digital archiving. At 300 DPI, text is crisp and readable, but the file size is still manageable. Scanning at 600 DPI produces files that are four times larger with no visible benefit for screen viewing.

Compress Images First If the PDF Is Too Large

If your combined PDF is too large to email or upload, compress the individual images before combining them. Use the Image Compressor to reduce each image to a reasonable size (500 KB or less per image) before uploading to the JPG to PDF tool.

Alternatively, compress the finished PDF using the PDF Compressor. This works after you have combined the images and can reduce the total file size significantly.

Reorder Pages After Creating the PDF

If you forget to reorder images before converting, or if you want to remove a page after the PDF is created, use the Merge PDF tool. It not only combines PDFs but also lets you rearrange and remove pages.

File Size Warning

Be aware that a PDF combining multiple images can be larger than the sum of the original image files. This is because the PDF format wraps each image in additional metadata and structure data. If you combine five 2 MB photos, the resulting PDF might be 11 to 12 MB instead of exactly 10 MB.

If file size is a concern, compress the images before combining or compress the final PDF. For most email and upload purposes, keep the total PDF under 10 MB.

Combine your images into PDF now โ€” free โ†’