You don't need a scanner to produce a professional-looking PDF. A phone camera and a couple of minutes are enough to turn receipts, signed forms, handwritten notes or ID documents into a single, tidy file you can email or upload.
The difference between a PDF that looks like a crumpled photo and one that looks properly scanned comes down to a few simple habits. Here's the full workflow.
Step 1: Take a good photo
The quality of your PDF is decided before you open any software.
- Use even, bright light. Daylight from a window is ideal. Avoid the phone's flash — it creates a hot spot and glare on glossy paper.
- Avoid shadows. Your own hand and phone easily cast a shadow over the page. Shoot from slightly to the side of the light source.
- Hold the phone parallel to the page. Shooting at an angle makes the page look like a trapezoid and the far side of the text smaller.
- Use a contrasting background. A white page on a dark table is easier to crop cleanly than a white page on a white desk.
- Fill the frame with the document, leaving a small border.
- Tap to focus on the text, and hold still. Check that the smallest print is sharp before moving on.
- Flatten the paper. Creases and curled corners distort text near the edges.
Many phones also have a built-in document scanner (in the Notes app on iPhone, or in Google Drive on Android) that detects page edges automatically. Those scans work perfectly with the steps below too.
Step 2: Crop and straighten each photo
Background clutter makes a PDF look unprofessional and adds file size.
- Use Crop Image to trim each photo to the edges of the page. Freeform mode lets you follow the page exactly.
- Use Rotate Image for any photo that came out sideways or upside down.
It takes a few seconds per page and makes a big difference to how the final document looks.
Step 3: Combine the images into a PDF
Open Image to PDF (or JPG to PDF if all your photos are JPGs):
- Add all the photos. You can drag them in together.
- Put them in order — the order of the images becomes the page order.
- Choose a page size.
- A4 (common across most of the world) or Letter (US and Canada) if the PDF might be printed or submitted somewhere that expects standard pages.
- Fit to image to make each page exactly the size of its photo, with no borders.
- Choose orientation and margins. Auto orientation picks portrait or landscape per image. A small margin gives a clean, scanned-document look.
- Create the PDF and download it.
Everything is processed in your browser, so your documents — often ID cards, financial or medical paperwork — never leave your device.
Step 4: Check the size and shrink it if needed
Photos are big. A dozen phone photos can easily produce a 30–40 MB PDF, which is too large for most email services and many upload forms.
- Compress the PDF with Compress PDF. Photographed documents compress extremely well; the Recommended or Extreme level usually keeps text perfectly legible.
- Or resize the photos first with Resize Image. For a readable A4 page, around 1,600–2,000 pixels on the long side is plenty.
Our guide to compressing a PDF for email covers size limits in more detail.
Step 5: Name it properly
A descriptive filename helps the recipient and your future self. Compare IMG_4821.pdf with 2026-10-Expenses-Receipts.pdf. Including a date in year-month-day format keeps files sorted correctly in any folder.
Common use cases
Expense reports. Photograph receipts as you go, then combine them into one PDF at the end of the month. Merge it with your expense form using Merge PDFs.
Signed forms. Print, sign, photograph and convert — useful when a form must be returned as a PDF and you don't have a scanner.
Handwritten notes and whiteboards. Turn lecture notes or meeting whiteboards into a shareable PDF.
ID and proof-of-address documents. Many applications ask for these as a single PDF. Crop each image tightly, and if you're sending them to a third party, consider adding a watermark such as "For rental application only" with Add Watermark to discourage misuse.
Children's artwork and keepsakes. A simple way to archive drawings or letters before the originals fade.
Making text searchable
A PDF created from photos contains images of text, not actual text, so you can't search it or copy words from it. If you need that, run the PDF through an OCR (optical character recognition) tool afterwards. Google Drive does this when you open a PDF with Google Docs, and many PDF editors include OCR. Sharp, evenly lit photos give the best OCR results.
Frequently asked questions
Can I mix PNG, JPG and WebP images?
Yes — Image to PDF accepts common image formats and combines them into one document.
Can I convert iPhone HEIC photos?
Convert them to JPG first with HEIC to JPG, then add them to the PDF. See HEIC vs JPG for more about the format.
What resolution do I need for the PDF to print well?
For printing, aim for about 200–300 pixels per inch at the printed size. For an A4 page (about 8.3 × 11.7 inches), that means roughly 1,650 × 2,340 pixels or more. Modern phone cameras exceed this comfortably.
Summary
Shoot in good, even light; crop and straighten each photo; combine them in order at a standard page size; then compress and name the file sensibly. That's all it takes to create a PDF that looks properly scanned — no scanner required.