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How to turn phone photos of documents into one clean PDF

Updated

No scanner nearby, and a form wants your documents as a PDF? Your phone camera can do the job. The difference between a messy result and one that looks scanned comes down to how you take the photos and a few minutes of tidying. This guide covers both.

Part 1: Take photos that look like scans

Most problems with phone-made PDFs start with the photo. These habits make the biggest difference:

  1. Lay the page flat on a table, ideally on a darker surface so the edges of the paper stand out.
  2. Use daylight from a window, or a bright room. Avoid the flash: it makes a shiny spot in the middle and dark corners.
  3. Hold the phone straight above the page, parallel to it. Photos taken at an angle make the page look like a trapezoid and the far text smaller.
  4. Watch your shadow. If you are between the light and the page, step to one side.
  5. Fill the screen with the page, leaving a small border so no edge is cut off.
  6. Tap the page on the screen to focus, then check the photo is sharp by zooming in before moving on.

Take one photo per page, in order. It makes the next steps much quicker.

Your phone may also have a built-in document scanner, such as Scan Documents in the iPhone Notes and Files apps, or Scan in Google Drive on Android. They straighten pages automatically, and their PDFs can still be combined and compressed with PDFHive.

Part 2: Crop away the table

If your photos show the table or floor around the page, crop each one with Crop image. Drag the box to the edges of the paper, click Crop image and download the result. This makes the final PDF look cleaner, and the picture of the page fills more of the PDF page, so the text appears larger.

Part 3: Combine the photos into one PDF

Open JPG to PDF and choose all your photos at once.

  1. Check the order. Drag a photo by the handle at the start of its row, or use the arrow buttons to move it up or down. The cross removes one.
  2. Choose A4 (or US Letter in North America) as the page size, so every page is the same size as a normal document.
  3. Choose a Small margin for a neat white border, or None to use the whole page.
  4. Click Convert to PDF and download it.

Photos are turned the right way up automatically, using the orientation your phone saved with each photo. JPG to PDF accepts JPG, PNG and WebP, and iPhone HEIC photos too: those are turned into JPGs in your browser first, which takes a moment longer.

Part 4: Fix sideways pages

A landscape page, such as a wide table or a certificate, can end up sideways. Open the PDF in Rotate PDF, turn just those pages, and save. If two pages are in the wrong order, fix them with Reorder PDF pages.

Part 5: Make it smaller

JPG to PDF copies your photos in at full quality, so a PDF of a few phone photos is often several MB. To shrink it, open Compress PDF:

  • Recommended keeps colour and makes the file much smaller. Use it for ID cards, certificates with coloured stamps, and anything with photos.
  • Black and white suits text-only pages, such as letters, statements and forms. It makes them far smaller and the text crisper. It compares each dot with the area around it rather than with one fixed level, so mild shadows and uneven light usually don’t turn into black patches. It removes all colour, so don’t use it for IDs or photos.
  • Target size lets you type an upload limit, such as 1 MB.

If the result doesn’t look right

  1. Text is blurry: the photo wasn’t in focus. Retake that page, tapping the text on screen to focus first.
  2. Pages look grey or dark: the light was too dim. Retake in daylight, or try Black and white in Compress PDF for text pages.
  3. Big dark patches in Black and white: a strong shadow or a fold. Retake the photo with more even light, or use Recommended instead.
  4. Still too large for an upload: see How to reduce PDF size for job, university and visa portals.

Tools for this guide

Frequently asked questions

Is a phone photo as good as a scanner?

For most forms and applications, yes, as long as the photo is sharp, evenly lit and taken from straight above. A flatbed scanner still gives more even light and straighter pages, which matters for fine print or documents you want to keep for years.

Should I use my phone's built-in document scanner instead?

It's a good option. Scanner features like the ones in the iPhone Notes and Files apps or Google Drive on Android straighten pages automatically. You can still combine their PDFs with Merge PDF and make them smaller with Compress PDF.

Can I do all of this on my phone?

Yes. Every PDFHive tool in this guide works in the browser on iPhone and Android, and the photos are processed on your phone, not uploaded. A computer is easier for long documents, simply because of the bigger screen.

Why are my PDF pages different sizes?

In JPG to PDF, the "Same as image" page size makes each page the size of its photo, so pages vary. Choose A4 or US Letter instead, and every page comes out the same size, like a normal document.

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