How to Convert JPG to PDF (Combine Photos into One File)
Quick answer
Add your images to JPG to PDF and drag them into the order you want — each becomes one page, in that order. Crop and rotate each image first if these are photographed documents, since trimming to the page edges is what stops the PDF carrying a desk or a shadow border. Then pick Fit to image to keep each photo's own shape, or A4 or Letter with a margin when a mix of orientations needs to land as one consistent document.
When a PDF beats loose images
Sending five phone photos of a signed contract as five separate attachments is awkward for whoever receives them — they arrive out of order, preview inconsistently, and are easy to lose track of. Combining them into a single PDF fixes all of that: one file, fixed page order, one download.
It's the standard move for submitting scanned receipts, ID photos, handwritten notes, or a photographed multi-page document as one clean unit.
Combining your images
Open JPG to PDF and add your images — each becomes one page. Drag them into the order you want; that order is the page order in the final PDF. Each image can be cropped and rotated right there before converting, which is the fix for a photo that came out skewed or with half a desk in shot.
Then pick a page size: Fit to image gives every page the shape of its own image, while A4 or Letter puts each image on a standard page with a margin you set — the better choice when a mix of portrait and landscape photos needs to land as one consistent-looking document.
Getting clean-looking pages
For photographed documents, use the built-in crop on each image to trim to the page edges before converting, so the PDF doesn't carry a desk or shadow border. Straightening a skewed photo makes a big difference too — a crisp, square scan reads as a proper document rather than a snapshot.
If you already have several PDFs (not images) to combine instead, use Merge PDF; if you later need the images back out of the PDF, PDF to JPG reverses the process.
Frequently asked questions
Which page size should I pick?
Fit to image keeps every page the shape of its own photo, which suits a set of images captured the same way. A4 or Letter with a margin is better when portrait and landscape shots are mixed, because it lands them all on one consistent page shape.
Does combining images reduce their quality?
The images are placed into the PDF rather than re-photographed, so what you get is what you supplied. A PDF built from several high-resolution photos can be large, though — compress it afterwards if it has to be emailed.