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How to Merge Marksheets, Certificates and ID Proof into One PDF

By the PDF Swing team · Updated 28 September 2026 · 4 min read

Admission and recruitment portals increasingly ask for “all documents in a single PDF”: your 10th and 12th marksheets, degree certificate, caste or income certificate, Aadhaar and sometimes a photo and signature — in a specific order, and often under a size limit. This guide shows how to turn a pile of separate scans into one clean, correctly ordered PDF, without installing anything and without sending your documents to a server.
Key takeaways
  • Convert every document to PDF first — photos with JPG to PDF, Word files with Word to PDF.
  • Merge PDF lets you drag files into the order the portal lists and pick only the pages you need from each file.
  • Merging never re-compresses pages, so quality stays the same; compress the merged file afterwards if it is over the limit.
  • Merge PDF runs in your browser, so marksheets and ID proofs are never uploaded to our server.
  • Keep a copy of each original — if a portal later asks for documents separately, you won’t need to rescan.
Use Merge PDFFree · no sign-up · no watermark

When a portal wants every document in one file

Some forms give you one upload box labelled “Documents (single PDF)”. Others let you upload separately but recommend a single file so nothing gets missed during verification. Either way the verifier reads the file top to bottom, so order matters: most notifications list documents in a sequence — typically identity proof, date-of-birth proof, educational qualifications from lowest to highest, category certificates and then anything else.

Read the notification once and write that order down before you start. It takes a minute and saves you from re-doing the merge after you notice the degree certificate sitting before the 10th marksheet.

Before you merge: get everything into PDF

Merge PDF combines PDF files, so every document needs to be a PDF first. Scans from a phone app such as the built-in notes scanner are usually PDFs already. Photos of certificates are JPG or PNG files — turn them into PDFs with JPG to PDF, choosing A4 and “Fit to page” so every page has the same size. If you have a Word document, such as a self-declaration or a statement of purpose, convert it with Word to PDF.

Check each file opens and is the right way up. A sideways page is the most common reason a verifier asks you to re-upload, and it is quicker to fix now than after merging.

Step by step: merge in the right order

Open Merge PDF and press “Select PDF files to merge”, or drop all your PDFs onto the page at once. Each file appears as a card with a thumbnail of its first page, the file name, size and page count.

Drag the cards into the order from the notification — the card at the top becomes page 1 of the merged file. If you prefer clicking to dragging, use the small up and down arrows on each card. Scanner apps that name files scan_001, scan_002 can be sorted in one go from the Sort menu.

Each card has a Pages field. Leave it empty to include the whole file, or type a range such as 1 or 1-2 when you only need part of a document — for example just the first page of a long certificate booklet. The presets First, Last, Odd and Even fill it in for you.

For portal uploads, leave “Summary cover page” and “Divider pages” switched off; they add extra pages that verifiers don’t expect. Give the output a sensible name like rollnumber-documents, then press the Merge button. The combined PDF downloads immediately.

Keep the merged file under the size limit

Merging copies pages as they are — nothing is re-encoded — so the merged file is roughly the sum of the originals. Five 300 KB scans make a 1.5 MB PDF. If the portal allows less, open the merged file in Compress PDF and choose Target Size, then enter the limit, for example 500 KB. Aim a little below the limit (say 480 KB) because some portals count sizes differently.

If one scan is much larger than the rest, it is usually a colour photo saved at a very high resolution. Compressing that single file before merging keeps the other documents crisp.

Common mistakes and how to avoid them

A page is sideways: fix it with Rotate PDF before merging, or use Organize PDF on the merged file. A document has a blank back page: type the page numbers you want in its Pages field so the blank page is skipped. One file will not add: it is probably password-protected — bank and some university PDFs are — so remove the password with Unlock PDF first, as long as you know it.

The same document appears twice: Merge PDF skips duplicate files by default, which prevents accidental double uploads. If you genuinely need a file twice, switch on “Allow duplicate files”.

Doing it on your phone

Everything above works in a mobile browser. Pick files from your Downloads or WhatsApp folder, long-press and drag cards to reorder, and the merged PDF is saved to your phone’s downloads. Because the merge runs on your phone itself, it works even on a slow connection once the page has loaded.

What to do next

Photographed a certificate instead of scanning it? Turn the photo into a PDF with JPG to PDF before adding it to the merge.

If the combined file is over the portal limit, use Compress PDF with a target size so it fits in one go.

Straighten sideways scans with Rotate PDF so the verifier can read every page without tilting their head.

A document that refuses to merge is usually password-protected — remove the password with Unlock PDF if you know it.

Need to move or delete a single page after merging? Organize PDF lets you drag pages around and remove extras.

Recommended tools

JPG to PDF
JPG to PDF
Compress PDF
Compress PDF
Rotate PDF
Rotate PDF
Unlock PDF
Unlock PDF
Organize PDF
Organize PDF

Frequently Asked Questions

Will merging reduce the quality of my marksheets?

No. Merge PDF copies each page exactly as it is, without re-compressing images, so scans look the same in the merged file. Quality only changes if you compress the file afterwards.

Can I include only one page from a long PDF?

Yes. Type the page number, such as 1, or a range, such as 2-3, in that file’s Pages field before merging. Only those pages are added to the combined PDF.

Are my Aadhaar and certificates uploaded to your server?

No. Merge PDF runs entirely in your browser, so your documents stay on your device. Closing the tab clears them from memory.

The merged PDF is too big for the portal. What now?

Open it in Compress PDF, choose Target Size and enter the portal’s limit, slightly lower to be safe. Compress only the merged file — the original scans stay untouched.

In what order should documents go?

Follow the order in the notification or the portal’s instructions. If none is given, a common sequence is identity proof, date-of-birth proof, education certificates from lowest to highest, then category and other certificates.

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