Last month I had to submit expense reports for a freelance project. I had seven receipts — some were photos I took with my phone, some were screenshots of online payments, and two were scanned documents. The client wanted everything in one PDF. I could have pasted them into a Word document and exported that, but the formatting always breaks. Instead, I used an image to PDF converter. Seven JPGs and PNGs became one clean, professional-looking PDF in under a minute. Here is how to do the same thing, plus tips for getting the page sizes right.
Why Convert Images to PDF?
Images are great for individual photos. But when you need to share multiple related images — receipts, scanned pages, design mockups, photo collections — sending seven separate files is annoying for the recipient. A single PDF is easier to open, easier to scroll through, and looks more professional.
PDF also has practical advantages over individual images. PDF files preserve the page order. They can be printed as a batch. They can be password protected. They can be searched (if the images contain text). And virtually every device made in the last twenty years can open a PDF without installing anything extra.
How the Conversion Works
When you convert an image to PDF, the converter creates a PDF document and places your image on a page. If you upload one image, you get a one-page PDF. If you upload ten images, you get a ten-page PDF — each image on its own page, in the order you uploaded them.
Our Image to PDF converter handles JPG, PNG, and WebP formats. It works directly in your browser — the images never leave your device. The PDF is assembled locally using the PDF-lib library, an open-source JavaScript tool that creates standards-compliant PDF files.
Page Size Options Explained
Auto (match image): Each page is sized to fit its image exactly. If image one is 800x600 and image two is 1200x900, the PDF will have mixed page sizes. This is fine for digital viewing but can cause issues when printing.
Portrait / Landscape: All pages are the same size, and images are centered on the page. Choose this if you plan to print the PDF or want consistent page dimensions throughout the document.
Step-by-Step: Converting Images to PDF
- Open the Image to PDF converter
- Click the upload area and select all the images you want to include — hold Ctrl (or Cmd on Mac) to select multiple files at once
- Review the list of images. Remove any you do not want. The order they appear in the list is the order they will appear in the PDF
- Choose page orientation — Auto (each page matches its image), Portrait, or Landscape
- Click Create PDF and download the result
Real Situations Where This Saves the Day
- Expense reports: Photos of receipts + screenshots of online payments → one PDF for accounting
- Scanned documents: Multiple scanned pages of a contract → one searchable, printable PDF
- Portfolios: Photos of your design work → one PDF portfolio to send to clients
- Insurance claims: Photos of damage + receipts for repairs → one organized PDF for the claim
- School assignments: Handwritten pages scanned as images → one PDF to submit online
If you need to go the opposite direction — extracting images from an existing PDF — our PDF to JPG tool handles that. If the resulting PDF is too large to email, run it through the PDF Compressor to shrink the file size.
Convert Images to PDF Now
Combine JPG, PNG, and WebP into one clean PDF — free, private, instant.
Open Image to PDF ConverterQuestions People Ask
Can I convert multiple images into a single PDF?
Yes. Upload as many images as you need. Each one becomes a separate page in the PDF. Arrange them in the order you want before creating the file.
What page size will the PDF use?
In Auto mode, each page matches its image exactly. In Portrait or Landscape mode, all pages use a consistent size and images are centered. Choose based on whether you plan to print the document.
Will my images lose quality in the PDF?
No. Images are embedded at their original resolution. The PDF will look exactly as sharp as the original images. No additional compression is applied during conversion.