How to Convert JPG Images to PDF
By PDFOak · Published September 9, 2026 · Updated October 1, 2026
Select your JPG files, drag them into order, and choose fitted, A4, or Letter pages. Fitted mode embeds the existing JPG data without compressing it again.
A4 and Letter pages also embed the original data, and scale each image to fit inside a margin. Because nothing is re-encoded, the PDF will be about as large as the photos combined.
How it works
- Choose your JPG or JPEG files in one batch.
- Drag them into document order.
- Use fitted pages to avoid scaling, or A4 or Letter when a standard page is required.
- Build the PDF.
- Open the result and rotate any page whose phone orientation was not carried over.
Fitted or standard pages
Fitted pages match each image’s dimensions, so there is no cropping and no blank margin. A4 and Letter scale each image to sit inside a standard page, which helps for printing and some filing systems.
Mixed image sizes produce mixed page sizes in fitted mode. That is valid PDF.
Why the result may be large
JPEG is already compressed, so combining images does not create a second large saving. Forty 4 MB photos produce a PDF close to 160 MB plus a little structure.
If a real limit requires it, compress the finished PDF as a separate step.
Frequently asked questions
Does it accept HEIC photos?
No. Browsers do not decode HEIC reliably. Convert those files to JPG first, or set the iPhone camera to Most Compatible.