How to Convert Images to PDF Properly
PDF is still the format institutions ask for: one file, fixed layout, opens everywhere. This guide shows how to combine photos and scans into a single PDF that people can actually read, and how to choose between A4, Letter and fit-to-image pages.
Why a PDF beats a folder of photos
A single PDF keeps pages in the right order, prints predictably, and is usually the only format an upload form or email recipient will accept for documents.
It also travels better. Ten separate photos can arrive out of order or partly missing; one PDF does not.
Choosing a page size
- A4 — the standard almost everywhere outside North America; best for forms and applications.
- Letter — the North American standard; use it when a US institution will print the file.
- Fit to Image — each page matches the photo exactly, with no margins or cropping. Ideal for portfolios and screenshots.
Step by step
Open Image to PDF and drop in all your JPG or PNG files at once. Each one appears as a numbered thumbnail.
Use the arrow buttons to move pages earlier or later, and remove anything you added by mistake.
Choose a page size, press Create PDF, and the document is assembled in your browser and downloaded.
Tips for readable scans
- Photograph documents in even, indirect light and avoid your own shadow.
- Hold the camera parallel to the page so text is not skewed.
- Crop out the desk or background before converting so the page fills the frame.
- Resize very large phone photos to around 1600–2000 px wide first — text stays sharp and the PDF stays small.
Common mistakes
- Adding pages in the wrong order and only noticing after sending the file.
- Using Fit to Image for a document that must be printed on A4.
- Uploading enormous unresized photos, producing a PDF too large to email.
- Blurry, low-light captures — no page size setting can rescue an unreadable photo.