Images to PDF
Combine up to 30 JPEG / PNG images into a single PDF document. Each image becomes one page sized to fit the image while preserving aspect ratio.
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Combine up to 30 images (JPEG, PNG, WebP) into a single PDF. Each image fits one page.
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How the conversion works
Select up to 30 JPEG or PNG files and they are combined into a single PDF, one image per page. Each page is sized to its image and the aspect ratio is preserved, so nothing is stretched, cropped or letterboxed.
The order of your files becomes the order of the pages, which matters more than people expect. Phone cameras and scanners name files in ways that sort unhelpfully — IMG_9 lands after IMG_10 in a plain alphabetical sort. Renaming with zero-padded numbers such as 01, 02, 03 before uploading is the reliable way to get the sequence you intended.
Why a PDF rather than loose images
A PDF holds a multi-page document together as one file with a fixed page order, which is exactly what most recipients need. Emailing eight photos of a signed contract invites confusion about sequence and completeness; one eight-page PDF does not.
It is also the format institutions expect. Job applications, visa paperwork, insurance claims, expense submissions and university coursework portals almost always ask for PDF, frequently rejecting image uploads outright. Converting is usually the difference between a submission being accepted and being returned.
PDFs render consistently too. The page layout is fixed, so the document looks the same on every device and printer, which is not true of images pasted into a word processor.
Getting good results from photographed documents
Most images-to-PDF conversions are photos of paper, and a few habits at capture time matter far more than anything the converter can do:
- Shoot straight down, not at an angle. A skewed page is hard to read and looks careless on an official submission.
- Use even, indirect light. Overhead light casts your own shadow across the page; a window to the side works better than a lamp above.
- Fill the frame with the page and crop the surroundings before converting, so the PDF page is the document rather than a document sitting on a desk.
- Check focus on the smallest text before you leave — a blurry photo of a passport or a bank statement will simply be rejected.
- For pure text, greyscale is smaller than colour and just as legible.
The result is images, not searchable text
This is the most important limitation to understand. Each page contains a picture of your document, so the text inside cannot be selected, searched or copied, and a screen reader cannot read it aloud. The PDF is a container for images rather than a text document.
Making it searchable requires OCR, which recognises the characters and adds an invisible text layer behind the image. If a form specifically demands searchable or accessible PDF, or you need to find a clause inside a long scan later, run OCR rather than assuming the conversion produced text.
Watch the file size
Modern phone photos are large, and thirty of them makes a substantial PDF — easily beyond the 5 or 10 MB ceiling that many upload forms and email servers impose. The PDF is roughly the sum of the images inside it, since it stores them at full resolution regardless of page size.
Resize the images to something reasonable before converting — around 1500 to 2000 pixels on the long edge is ample for a readable document page — or compress the finished PDF afterwards. Doing it beforehand generally gives the better result, because you keep control over the quality of each image rather than applying one setting to the whole document.