How to Convert JPG to PDF Online
Putting JPG photos into a PDF takes a minute, but three choices decide whether the result looks right: the page size, the order and the size of the photos. Here is what each setting actually does.
Add your JPG files, drag them into order, choose a page size and press Convert to PDF.
Turn JPG photos into a PDF in five steps
- Open JPG to PDF and drop your photos on the box. You can add several at once, and a small list appears with one row per file.
- Drag the rows into the order you want the pages in. The first row becomes page 1. Use the ✕ at the end of a row to take a photo out.
- Choose a Page size: Fit image to A4, Fill A4 (crop edges) or Use image dimensions.
- Choose an Orientation: Auto (portrait/landscape), Always portrait or Always landscape.
- Press Convert to PDF. When the status says "Done! Your PDF is ready.", press Download PDF to save
images-to-pdf.pdf. The result line tells you the page count and file size.
Which page size to pick
The three page sizes behave quite differently, and the choice decides how the PDF looks when someone prints it or opens it on a phone.
| Page size | What happens | Good for |
|---|---|---|
| Fit image to A4 | The whole photo is shown, centred, with white margins where its shape does not match the page | Documents, forms, anything printed |
| Fill A4 (crop edges) | The photo covers the entire A4 page and whatever sticks out past the edge is cut off | Full-bleed photo pages |
| Use image dimensions | Each page is exactly as large as its photo | Viewing on screen, keeping every pixel |
"Use image dimensions" deserves a warning. The page size is taken from the pixel size, so a 4000 x 3000 photo becomes a page that measures 4000 x 3000 points, far larger than A4. It looks fine on a screen, but printing it will scale it down, and different photos produce differently sized pages in the same PDF. For anything that will be printed or uploaded to a form, Fit to A4 is the safer choice.
Why the PDF is about as big as your photos
JPG files are placed into the PDF as they are, without being compressed a second time. That keeps their quality, and it also means the PDF is roughly the combined size of the photos. Ten phone photos of 3 MB each give a PDF of around 30 MB. Nothing in the converter shrinks them.
If the PDF has to fit an email or an upload field, reduce the photos before converting, using Resize Image or Compress JPG, or shrink the finished PDF with Compress PDF. The size-limit guides are making a PDF under 1 MB, 2 MB or 5 MB and what to do when a PDF is too large to email.
Photos that come out sideways
This is the most common complaint with phone pictures. A phone often stores a portrait shot as a landscape image plus a small note that says "show this rotated". Many programs honour that note and PDF viewers frequently do not, so the page can show the photo on its side even though your gallery displays it upright.
Check the finished PDF before sending it. If some pages are turned, fix just those with Rotate PDF, which lets you deselect the pages that are already right. The walkthrough is in how to rotate PDF pages online.
Other things that go wrong
- The pages are in the wrong order. The PDF follows the list exactly. Reorder the list and convert again, or fix the finished file with Reorder PDF Pages.
- A margin appears around a photo. That is Fit to A4 doing its job. Pick Fill A4 if you would rather lose a little at the edges than see white bands.
- Something other than a JPG is in the list. This page is set up for JPG files, and other image types are handled through the browser. For a batch of mixed formats the Image to PDF tool is the better home, and HEIC to PDF covers iPhone photos.
- The conversion stops with "Something went wrong". One file in the batch is probably damaged or too large for the device's memory. Convert fewer photos at a time to find the culprit.
A short checklist before you send the PDF
- Open
images-to-pdf.pdfand scroll through every page, not just the first. - Look for sideways pages, wrong order and unexpected white margins.
- Check the file size in the result line. If a form or an email limit applies, compare it now rather than after a failed upload.
- Rename the file to something the recipient can recognise, such as your name plus the document type.
When a different route is better
If your files are screenshots or graphics with transparent areas, read how that goes in the PNG to PDF guide. For several formats in one document, see converting images to a single PDF. And if the photos are pages of paper, turning scanned photos into one clean PDF covers cropping, order and size in more detail.
Frequently Asked Questions
Can I put several JPG files into one PDF?
Yes. Add all the photos, drag them into the order you want and convert once. Each photo becomes one page of the same PDF.
Does converting JPG to PDF reduce the quality?
No. JPG files are placed into the PDF as they are, without a second round of compression, so the quality matches the originals.
Why is my PDF so large?
The PDF is about as big as all the photos added together, because nothing is compressed again. Resize or compress the photos first, or run the finished PDF through Compress PDF.
What does Use image dimensions mean?
Each page takes the pixel size of its photo, so a 4000 x 3000 image becomes a very large page. It suits viewing on screen but is awkward for printing.
Why do some of my photos appear sideways in the PDF?
Phones often store a rotation note with the picture, and PDF viewers may ignore it. Fix affected pages afterwards with the Rotate PDF tool.
What is the name of the file I download?
The tool saves a file called images-to-pdf.pdf. Rename it before you send it so the recipient knows what it contains.