JPG to PDF: How to Combine Photos into a Single PDF File

To convert JPG to PDF, open Priya LifePDF's JPG to PDF tool, add one or more .jpg or .jpeg images, drag them into the order you want, choose a page size, orientation and margin, and click Convert to PDF. Each image becomes one page, and the whole conversion happens in your browser.

This guide covers the steps, what each option actually does, and the problems people most often run into, such as sideways phone photos and pages that come out larger than expected.

How to convert JPG to PDF with Priya LifePDF

1. Open the tool. Go to JPG to PDF.
2. Add your images. Drag JPG files onto the upload area or click it to browse. You can select up to 100 files at a time. Each image appears as a thumbnail with a page number in the corner.
3. Set the order. Drag thumbnails to rearrange them. Images appear in the PDF in the order shown, so image 1 becomes page 1. Hover over a thumbnail to show its remove button, or use Clear All to start again.
4. Choose the PDF options. Under PDF Options, pick the page size, orientation and margin, and decide whether images should be centred and scaled to fit. The next section explains each one.
5. Convert and download. Click Convert to PDF, then use the download button. A single image keeps its own file name; several images are saved as one PDF named after the number of pages.

What do the page options do?

• Page Size. A4 is selected by default. You can also choose Letter, Legal, A3 or A5, or Fit to Image, which makes each page the size of its image plus the margin.
• Orientation. The default, Auto (match image), turns each page to suit its own image: landscape photos get landscape pages and portrait photos get portrait pages, so a mixed set produces mixed page orientations. Portrait or Landscape forces every page one way.
• Margin. None, Small (0.25 inch), Medium (0.5 inch, the default) or Large (1 inch). The margin is the white border kept around each image.
• Center images on page. On by default. If you turn it off, each image sits in the bottom-left corner, inside the margin.
• Scale images to fit page. On by default. Images larger than the space inside the margins are shrunk to fit, keeping their proportions. Smaller images are never enlarged, so they are not stretched or blurred.
• Split into multiple PDFs. This appears when you add more than one image. Tick it and set Images per PDF, and the tool creates several PDFs instead of one, packaged as a ZIP archive.

Tips and common mistakes

Keep "Scale images to fit page" switched on

Phone and camera photos are usually far larger, in pixels, than a printed page. With scaling turned off, a large photo is placed at full size and runs off the edge of the page, so part of it is cut off. Leave scaling on unless you are working with small images that you want at their natural size.

Small images look small

Because the tool does not enlarge images, a small image such as a screenshot or thumbnail will sit in the middle of an A4 page with plenty of white space around it. If you want the page to hug the image instead, choose Fit to Image.

Sideways phone photos

Some cameras save a photo in one direction and store a note telling apps to rotate it when displayed. The tool places the image data as it is stored, so a photo that looks upright in your gallery can occasionally appear sideways in the PDF. If that happens, fix the affected pages with Rotate PDF, or rotate and re-save the image before converting.

Check the order before converting

The order in which files arrive depends on how you selected them. Look at the numbered badges and drag any image that is out of place. Naming files with a number at the start, such as 01, 02 and 03, makes a long set easier to sort.

File size follows your photos

JPG images are placed in the PDF as they are, without being re-compressed, so there is no loss of quality. The flip side is that the PDF will be roughly as large as the photos inside it. If it is too big to email or upload to a portal, run it through Compress PDF.

Other image formats

This tool accepts .jpg and .jpeg files only. For PNG screenshots use PNG to PDF, and for a mix of formats use Image to PDF.

Are your photos uploaded?

No. The images are read by your browser and the PDF is built inside the tab, on your own device. The thumbnails you see are generated locally too. Nothing about the conversion requires sending your photos to a server.

If you would like to confirm this yourself, our guide on how to check if a PDF tool uploads your files shows how to watch your browser's network activity during a conversion. For background on server-based tools, read is it safe to upload PDFs to online converters.

Example: gathering photos of a paper equipment log

A laboratory technician is helping with an internal investigation into an instrument fault and needs to share the relevant pages of a paper equipment log with a colleague on another site. She photographs each page with a phone, making sure the whole page and its entries are in frame.

On a computer, she opens JPG to PDF, adds the photos, and checks that the numbered thumbnails follow the page order of the logbook. She chooses A4, leaves orientation on Auto and the margin on Medium, keeps scaling switched on, and converts. Before sending, she scrolls through the PDF to confirm that every page is upright and legible, rotating any sideways page.

A phone photo compiled into a PDF is a convenient working copy, not a certified true copy. If the images need to form part of a formal record, follow your site's own procedure for creating and verifying copies of original records.