JPG to PDF

The settings and what they do

How to convert JPG images to PDF

1. Choose one or more JPG files. Each image becomes one page.
2. Arrange the images into the order the pages should appear.
3. Pick a page size. For anything that will be printed or uploaded to an official portal, A4 (most of the world) or Letter (US and Canada) is the safer choice.
4. Choose Fit entire image so nothing is cropped, and add a small margin if the pages will be printed.
5. Set image quality. Start at the default and lower it only if the file is too large for where it is going.
6. Create the PDF, download it and flick through every page to check orientation and legibility.

Getting good results from phone photos

• Photograph documents in daylight or even light, avoiding the shadow of your phone across the page.
• Hold the phone parallel to the paper. Keystoned shots, wider at one end, are harder to read and print.
• Fill the frame with the page, leaving a small border, so the text is as large as possible.
• If a photo is sideways, fix it with Rotate Image before converting, or use Auto orientation and check the result.
• For multi-page paper documents, Scan to PDF can straighten and clean up captures before building the PDF.

A worked example

After a work trip, someone has nine receipt photos from their phone, each about 3 MB, and an expense system that accepts one PDF up to 10 MB. Converting with A4 pages, Fit entire image and a small margin at 100% quality would embed the original photos and produce a file of roughly 27 MB. Lowering image quality to around 60% re-encodes the photos at a smaller size; receipts stay legible because they are high-contrast text, and the PDF fits under the limit.

Checking the result matters here: zoom in on the smallest printed totals. If any are hard to read, raise quality a little and try again, or crop the receipts more tightly before converting so the text takes up more of each image.

Quality and file size explained

A JPG is already compressed, and converting it to PDF cannot restore detail that compression removed. At 100% quality, MyFileNest embeds JPG files as they are, so the PDF matches the photos exactly and is roughly the sum of their sizes. Below 100%, each image is re-encoded at the chosen quality, which reduces size at the cost of fine detail.

If the photos are much larger in pixels than the page needs, resizing them with Image Resizer first, for example to 2000 pixels on the long edge, is often a better way to save space than pushing quality very low.

Related conversions

PNG to PDF and Image to PDF accept other formats, and HEIC to PDF handles iPhone photos directly. To go the other way and turn PDF pages into pictures, use PDF to JPG. To combine the new PDF with existing documents, use Merge PDF.

Checklist for official submissions

• Use A4 or Letter page size to match the paper standard of the organisation you are sending to; portals sometimes reject unusual page sizes.
• Make sure every page is upright. Reviewers rarely rotate pages, and a sideways ID scan can delay an application.
• Keep each page legible at 100% zoom: names, dates and reference numbers must be readable without enlarging.
• Name the file clearly, for example surname-proof-of-address.pdf.
• If the portal asks for separate documents, create separate PDFs rather than one combined file.

Quick answers

How many images can I add? There is no fixed page count, but every image is held in your device's memory while the PDF is built, so very large batches of full-resolution photos are easier on a computer than on an older phone.

Can I mix JPG and PNG files? Use Image to PDF, which accepts several image formats in one document.

Will the PDF be searchable? No. Photos of text are images; run the finished PDF through OCR PDF to add a searchable text layer.