How to Combine Scanned Documents Into One PDF on Your Phone

Many applications ask you to upload all your documents as a single PDF: CNIC or Aadhaar, degrees, transcripts, experience letters. If you do not have a scanner, your phone can do the whole job. This guide shows how to photograph the pages, turn them into a PDF, and add any PDFs you already have, in the order the form expects.

Step 1: Photograph each page

• Lay the page flat on a dark, plain surface so the edges stand out.
• Use daylight from a window and avoid the flash, which leaves a bright spot.
• Hold the phone directly above the page, not at an angle, and fill the frame with the page.
• Take the photos in the order you want the pages to appear. It saves reordering later.

Your camera app’s document mode, if it has one, can straighten pages automatically. A normal photo works too.

Step 2: Turn the photos into a PDF

1. Open JPG to PDF and tap Choose photos. Select all the pages.
2. Use the arrows next to each photo to fix the order if needed.
3. Set Page size to A4, which is what most offices and portals expect.
4. Leave Orientation on Automatic (match each photo), so landscape pages such as a certificate stay landscape.
5. Choose a Margin. Small (6 mm) looks neat when printed.
6. Tap Convert to PDF, then Download PDF.

Photos taken sideways are turned the right way up automatically.

Step 3: Add PDFs you already have

If some documents are already PDFs, such as a transcript emailed by your university, merge them with the one you just made.

1. Open Merge PDF and tap Choose PDF files. Select your new PDF and the others.
2. Files are merged from top to bottom. Use the arrows to put them in the order the form asks for.
3. If you only need some pages from a file, type them in its Pages box, for example 1-3, 5. Leave it empty to include every page.
4. Tap Merge PDF, then Download merged PDF.

Keeping the file under the size limit

Portals often limit uploads to 2 MB or 5 MB. Full-size phone photos can push a 10-page PDF well past that. Before step 2, run the photos through the Image Compressor with Maximum size set to 1920 px or 1280 px. Text stays readable and the PDF ends up a fraction of the size.

Common problems

• HEIC photos on iPhone. If a photo will not open, change your camera to “Most Compatible” in Settings, then Camera, then Formats, and take it again, or share it as a JPG.
• A page is upside down. Remove it, rotate it in your gallery and add it again.
• A PDF will not merge. Password-protected PDFs cannot be merged. Open the file, save a copy without the password, and try again.

Your documents stay on your phone

Both tools work inside your browser. Your ID card and certificates are never uploaded to Logicox or anyone else, which is how it should be for documents this personal.