Image to PDF
Convert JPG or PNG images to PDF for government portal document uploads. Combine multiple scanned certificates into one PDF file. Everything runs in your browser — your documents never leave your device.
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JPG or PNG · Multiple files allowed
Tips for Government Portal Uploads
- • Upload scanned certificates as images and convert to PDF for portal upload
- • Drag thumbnails to reorder pages before converting
- • A4 Portrait works for most government portal uploads
Why Government Portals Require PDF Format
Most government recruitment portals moved to PDF-only document uploads a few years back, and there are good practical reasons for it. PDFs are fixed-layout files — they look the same on every device and every operating system. A JPG displayed on a Windows laptop may look different from the same JPG opened on a Linux server in a government office. PDF eliminates that problem.
PDFs are also easier for the recruitment board's systems to process automatically — they can be batch-printed for document verification rounds, stored uniformly in digital record systems, and scanned for text using OCR tools. When you photograph a certificate and upload it as a JPG, the system has no way to know which way is "up" unless it analyses the image. A PDF has a defined page orientation built in.
For the applicant, the practical effect is simple: you photograph or scan your physical certificates, then use a tool like this one to convert those images to PDF before uploading. The portal gets a properly formatted document, and you avoid the "Invalid file format" error.
Documents You Typically Need to Convert to PDF for Government Applications
Different applications ask for different documents, but these are the ones that come up most often across APPSC, UPSC, SSC, and State PSC applications:
Educational Certificates
- • 10th Class Marks Memo (SSC)
- • Intermediate Certificate (12th)
- • Degree Certificate / Provisional Certificate
- • Postgraduate degree / Diploma
- • Migration Certificate (if from another board)
Identity & Residence Proof
- • Aadhaar Card (front and back)
- • PAN Card
- • Voter ID
- • Domicile / Nativity Certificate
- • Residence Certificate from MRO / Tahsildar
Category & Community Documents
- • Caste Certificate (SC / ST / OBC / BC)
- • Income Certificate (for fee exemption)
- • EWS Certificate
- • Community Certificate from Tahsildar
Other Common Documents
- • Ex-Servicemen Discharge Certificate
- • Disability Certificate (PH category)
- • NOC from current employer (for Govt employees)
- • Experience Certificate
How to Convert Image to PDF for APPSC Application — Step by Step
The APPSC (Andhra Pradesh Public Service Commission) portal asks you to upload documents as PDF during the certificate verification stage and sometimes during the initial application itself. Here's the full process from scanning to uploading:
- 1
Scan or photograph your certificate
Place the certificate flat on a table with even lighting. If using a phone, hold it directly above the document — not at an angle. Make sure all text and stamps are clearly readable. The APPSC certificate verification staff will check these for authenticity, so clarity matters.
- 2
Save as JPG (or PNG for black-and-white documents)
Most phone cameras save as JPG automatically. If you're using a document scanner app, choose JPG or PNG output. Avoid HEIC format — convert to JPG first if your phone saves in HEIC.
- 3
Open this Image to PDF tool
Click the upload area and select your image file. You'll see a preview of the page. If the document needs to be rotated, rotate it before uploading or use the rotation option if available.
- 4
Select A4 Portrait and convert
A4 Portrait is the correct setting for all standard Indian government certificates. Click Convert to PDF and download the file.
- 5
Check the file size before uploading
Right-click the downloaded PDF → Properties → check the file size. APPSC generally allows up to 1MB per document. If your file is larger, use the PDF Compress tool to reduce it.
Combining Multiple Certificates into One PDF
Some portals ask you to upload all supporting documents as a single combined PDF rather than individual files. This is common in UPSC's Detailed Application Form (DAF) submissions and many State PSC verification processes.
The usual order for a combined document PDF is:
- Application form printout (if included)
- Photo ID proof (Aadhaar / Voter ID)
- 10th Marks Memo
- Intermediate Certificate
- Degree Certificate
- Caste Certificate (if applicable)
- Any other category-specific certificates
To do this in this tool: upload all the images at once, then drag the thumbnails into the correct order listed above. Once the order is set, click Convert and you'll get a single multi-page PDF with everything combined.
If the combined PDF ends up above the portal's size limit, compress it with the PDF Compress tool before uploading. Alternatively, scan each document at 150 DPI (rather than 300) to keep sizes smaller from the start.
Best Scan Settings for Government Documents
The quality of your PDF depends heavily on how well you scan the original document. A bad scan creates problems that no tool can fully fix afterward — blurry text, cut-off corners, or stamps that are unreadable during verification.
Resolution: 150–200 DPI
150 DPI produces clearly readable text for most certificates. 200 DPI is better for documents with fine print (like Caste Certificates with small official text). Going above 300 DPI serves no practical purpose for document submission and triples your file size.
Lighting: Bright and even, no shadows
Shadows across the document are the most common problem with phone scans. Stand near a window for natural light, or use two light sources from different angles to eliminate shadows. If you're using a flatbed scanner, close the lid fully and don't let the document lift at the edges.
Alignment: Keep the document straight
A slightly tilted scan makes the document look careless. Most document scanner apps include an automatic perspective-correction feature that straightens the image — use it. If you're using a camera, keep the phone/camera parallel to the document surface.
Colour mode: Colour for coloured certificates, Greyscale for plain text
Original degree certificates, community certificates, and documents with coloured seals or logos should be scanned in colour. Greyscale is fine for plain black-text documents and reduces file size. Avoid black-and-white (1-bit) mode — it makes photos look terrible and loses fine details in stamps.
PDF Size After Conversion — Keeping It Under Portal Limits
Converting a single A4 scanned certificate at 150 DPI produces a PDF in the 200–600KB range, which fits within most portals' 1MB per-file limit. Multi-page PDFs can get larger. Here's a quick reference for typical output sizes:
| Document Type | Scan Quality | Typical PDF Size | Fits 1MB Limit? |
|---|---|---|---|
| Single certificate (1 page) | 150 DPI, colour | 200–500 KB | Yes |
| Combined (4–5 certificates) | 150 DPI, colour | 1–2.5 MB | May need compression |
| Aadhaar card (both sides) | 150 DPI | 150–300 KB | Yes |
| Marks Memo (1 page) | 200 DPI, greyscale | 100–250 KB | Yes |
If your combined PDF exceeds the portal's limit, use the PDF Compress tool to reduce it. Alternatively, split the documents across multiple upload slots if the portal allows separate uploads.
Frequently Asked Questions
How do I convert a JPG to PDF for a government portal?
Open this tool, upload your JPG image, select A4 Portrait as the page size, and click Convert to PDF. Download the file and check its size before uploading. The whole thing takes under two minutes and the resulting PDF is accepted by all major government portals.
Can I combine multiple images into one PDF for document upload?
Yes. Upload all images at once, drag the thumbnails into the order you want the pages to appear, then click Convert to PDF. All images are combined into a single multi-page PDF file. This is useful when a portal asks for a single document containing all your certificates.
What resolution should I scan documents at?
Scan at 150 DPI for most documents. Use 200 DPI for documents with small text or fine print. Don't go above 300 DPI for government application uploads — it produces unnecessarily large files that may get rejected for exceeding the size limit.
What is the PDF size limit for APPSC document uploads?
APPSC generally allows up to 1MB per document. A single certificate scanned at 150 DPI and converted to PDF typically comes out around 200–500KB — well within the limit. For combined PDFs with 4–5 documents, you may need to compress using the PDF Compress tool.
What formats does UPSC accept for certificate uploads?
UPSC's Detailed Application Form requires PDF for most document uploads, with a size limit typically around 500KB per file. Convert your scanned images to PDF here, and compress the PDF if needed before uploading through the UPSC portal.
How do I scan certificates properly for an online government application?
Use a flatbed scanner when possible. If using a phone, place the document flat under good, even lighting with no shadows across the text. Use a document scanner app (Google Drive's scanner works well) for automatic perspective correction. Scan at 150–200 DPI and save as JPG. Make sure all four edges and any official stamps are fully visible.
Which exam are you preparing for?
Each exam has specific photo dimensions, KB limits, and portal rules. See the guide for your exam.