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You need to upload your marksheets, ID proof and certificates as one PDF, and you don’t have a scanner. Your phone camera is good enough — if you follow a few simple steps. Here’s how to go from loose photos to a clean, professional-looking PDF that won’t get rejected.
Step 1: Take photos that look like scans
The quality of your PDF is decided the moment you take the photo.
- Use daylight or a bright room. Avoid the flash — it creates a shiny glare spot.
- Place the document flat on a dark, plain surface so the edges stand out.
- Hold the phone directly above, parallel to the page, to avoid a slanted, trapezoid shape.
- Fill the frame with the page, leaving a small margin around it.
- Check focus — zoom in on the photo to make sure small text is sharp.
Many phones have a built-in document scanner (in the Notes or Files app on iPhone, in Google Drive or Google Lens on Android) that straightens the page and removes the background. Use it if you have it — then save each page as an image.
Step 2: Crop and straighten
Crop away the table, your fingers and any background. A tightly cropped page looks professional and is easier to read. If a page is sideways, rotate it now — it’s harder to fix inside the PDF later.
Step 3: Get the order right
Portals often say “upload documents in the following order”. Rename or arrange the images so they follow it:
- Application form
- Photo ID (front, then back)
- Educational certificates (oldest to latest, or as instructed)
- Other supporting documents
In our JPG to PDF tool, use the up and down arrows to arrange images before converting. The first image becomes page one.
Step 4: Choose the page size
| Option | What it does | Best for |
|---|---|---|
| Fit to image | Each page is exactly the size of its photo | Viewing on screen, quick sharing |
| A4 | Photos are scaled onto standard A4 pages with a margin | Anything that may be printed or attached to official forms |
| US Letter | Same as A4, but in the US paper size | US institutions |
For Indian forms and offices, A4 is the safe choice: the document prints correctly and looks consistent.
Step 5: Keep the file size under the limit
Upload limits of 1–2 MB per document are common. Phone photos are large (3–5 MB each), so a 6-page PDF made straight from camera photos could be 20 MB or more.
To shrink it:
- Resize photos so the long side is about 1,500–2,000 pixels — plenty for readable text on A4.
- Compress to around 70–80% JPEG quality.
- Convert to PDF after that.
A typical 4 MB phone photo resized to 1,600 pixels wide and compressed to 75% quality is often around 200–300 KB — and still perfectly readable. Six such pages make a PDF of roughly 1.5 MB.
Step 6: Check before you upload
Open the final PDF and check:
- ✅ Every page is present and in the right order
- ✅ Text is readable when zoomed in
- ✅ Nothing important is cut off at the edges (stamps, signatures, dates)
- ✅ The file is within the size limit and named sensibly, e.g. Priya-Patel-Documents.pdf
Your documents stay private
ID cards and certificates are sensitive. Our JPG to PDF tool converts your images inside your browser, so nothing is uploaded to a server. Choose your photos, arrange them, pick a page size and download the finished PDF in seconds.
Free toolTry the JPG to PDFTurn photos and scanned images into one PDF document.Frequently asked questions
Can I add photos in a different order after converting?
Reorder them before you click convert using the arrows next to each image. If you already made the PDF, you can split and merge pages, but it's quicker to get the order right first.
Why is my PDF so large?
Each phone photo can be several megabytes. Resize the photos to around 1,500–2,000 pixels on the long side and compress them before converting — the PDF will usually drop well below 1 MB per page.
Is a photo PDF accepted where a scanned PDF is asked for?
Usually yes, as long as it's clear, complete and readable. If the portal requires text to be searchable, you'd need OCR, which a simple image-to-PDF conversion doesn't add.
Written by the Toolsopedia team. Spotted an error? Tell us and we’ll fix it.