How to Use Sarkari DNA Tools

Step-by-step guides for every tool on this site. No technical knowledge needed — just open, upload, adjust, and download in under a minute.

✓ No Sign-Up Required ✓ Files Stay on Your Device ✓ Works on Mobile & Desktop 7 Tools Covered
The Universal 4-Step Process

Every tool on this site follows the same simple workflow. Master this once and you can use any tool instantly.

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01
Open the Tool
Click any tool link. Loads instantly in your browser — no app install, no login.
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02
Upload Your File
Drag & drop or click to browse. Your file never leaves your device.
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03
Adjust Settings
Pick size, format, or quality. See a live preview before you finalise.
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04
Download
Hit Download. Your processed file saves directly to your device. Done!
🔍 Quick Find — Which Tool Do I Need?
Your Task Use This Tool Cost
🪪PAN card application photo & signature PAN Photo Resizer ⭐ Popular Free
📸Passport, VISA, school, or college form photos Passport Photo Maker Free
📄PDF is too large to upload on a portal PDF Compressor Free
🪪Aadhaar front & back as a single file Aadhaar Formatter Free
🖼️Photo background is not white Background Remover Free
🔄Convert scanned images to a PDF document JPG to PDF Converter Free
✍️Check if a PDF has a digital signature Signature Verifier Free
Step-by-Step Tool Guides
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PAN Card Photo & Signature Resizer
Resize to exact NSDL / UTI portal specifications
⭐ Most Popular Photo + Signature

The NSDL and UTI PAN portals require your photo to be exactly 213 × 213 px and under 50 KB, and your signature to be 560 × 90 px and under 30 KB. This tool handles all of that automatically — no guesswork, no rejections.

1
Open the tool Go to doc-tool.html. The tool loads in your browser instantly — no login or download needed.
2
Upload your photo Click the photo upload zone or drag your JPG/PNG onto it. A live preview appears immediately. Supported formats: JPG, PNG, WEBP.
3
Crop & adjust your face Use the crop handles to frame your face properly — forehead to chin should fill most of the frame. The tool auto-resizes to 213 × 213 px and compresses below 50 KB.
4
Download your photo Click Download Photo. The file will be named and sized exactly as required by the portal.
5
Upload your signature Scroll to the Signature section. Upload a photo of your signature on plain white paper, taken in good lighting.
6
Download your signature The tool crops, resizes to 560 × 90 px, and compresses under 30 KB automatically. Click Download Signature.
💡 Tips for Best Results
Use a plain white or light blue background for your photo
Face should be front-facing, eyes open, neutral expression
Sign with a black or blue pen on white paper for the signature
Avoid dark, patterned, or busy backgrounds — portals may auto-reject
Do not wear sunglasses or a cap in the photo
Open PAN Photo Resizer
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Passport Size Photo Maker
Print-ready A4 sheet with multiple photos
Print-Ready PDF

Create a standard A4 print sheet filled with multiple passport-size photos (35 × 45 mm). Perfect for Passport applications, VISA forms, Aadhaar enrollment, Railway passes, and school/college admissions.

1
Open the tool Visit passport-photo.html. Works on desktop and mobile browsers.
2
Upload a clear photo Upload a front-facing photo in JPG or PNG. Good lighting and a plain background give the best output.
3
Crop your face Use the crop tool to frame your face. The crop box automatically enforces the 35 × 45 mm (4:5) aspect ratio.
4
Choose your layout Select 6, 8, or 12 photos per A4 sheet. The tool arranges them with correct spacing automatically.
5
Download & print Download as PDF or PNG. Print on 4R or A4 glossy photo paper at 300 DPI for accurate physical dimensions.
💡 Tips for Best Results
Print at exactly 300 DPI to get the correct 35 × 45 mm size
Use glossy photo paper for professional finish
Indian Passport requires 2 × 2 inch (51 × 51 mm) — confirm the size requirement with the portal before printing
Open Passport Photo Maker
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PDF Compressor
Reduce file size for portal uploads — up to 80% smaller
Up to 80% Smaller

Government portals like NSDL, UIDAI, Income Tax, and DigiLocker often limit PDF uploads to 500 KB – 2 MB. This tool reduces your PDF size so it clears the limit without sending your file to any server.

1
Open the tool Visit pdf-compressor.html. Accepts PDFs up to 50 MB.
2
Upload your PDF Drag and drop or click to browse. Your original file size is displayed immediately after upload.
3
Choose compression level Low — minimal quality loss, moderate size reduction. Medium — best balance (recommended for most portals). High — maximum size reduction, slight quality drop.
4
Compress & download Click Compress. The new file size is shown before you download. Compress again if more reduction is needed.
💡 Tips for Best Results
Medium compression works for most government portal uploads
You can compress multiple times to reach the target size
Very high compression may blur scanned text — always check readability before submitting
Open PDF Compressor
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Aadhaar Card Formatter & Merger
Combine front + back into one document
Front + Back

Many portals ask for both sides of your Aadhaar card in a single file. This tool merges the front and back images into one PDF or JPG — without uploading anything to our servers.

1
Open the tool Visit aadhaar-formatter.html.
2
Upload the front side Click the first upload zone and select the front image of your Aadhaar card (JPG, PNG, or scanned PDF).
3
Upload the back side Click the second upload zone and select the back image of your Aadhaar card.
4
Choose your layout Side-by-side (landscape) — both sides on one row. Stacked (portrait) — front on top, back below. Check what the portal prefers.
5
Merge & download Click Merge. Download as a single PDF or JPG, ready to upload directly to the portal.
💡 Tips for Best Results
Scan or photograph both sides in good lighting so text is readable
Compress the merged PDF if the portal has a file size limit
Your Aadhaar data is never sent to any server — processing is fully local
Open Aadhaar Formatter
🖼️
Background Remover
Replace any background with white — AI-powered
AI in Browser

Government photo rules almost always require a plain white background. If your photo has a different background, this tool uses AI — running entirely inside your browser — to detect and remove it, then replaces it with white.

1
Open the tool Visit bg-remover.html. The AI model downloads once and runs locally — no internet required after that.
2
Upload your photo Upload any JPG or PNG photo. Works best with clear, well-lit, front-facing portraits.
3
Wait for processing The AI detects your subject and removes the background. This takes 5–20 seconds depending on your device speed.
4
Choose a background colour Select White (required for PAN, Passport, Aadhaar), light blue, or transparent PNG.
5
Download Download as JPG or PNG and use directly in your application form.
💡 Tips for Best Results
Well-lit photos with clear contrast between subject and background give the cleanest cuts
After removing the background, run the photo through the PAN Photo Resizer for portal-ready output
Complex hair textures or very busy backgrounds may have minor edge imperfections
Open Background Remover
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JPG to PDF Converter
Bundle multiple images into a single PDF
Multi-Image

Convert one or more JPG/PNG images into a single PDF. Useful for bundling scanned mark sheets, certificates, identity documents, or any set of images that a portal requires as a single PDF file.

1
Open the tool Visit jpg-to-pdf.html. Supports up to 20 images at once.
2
Upload your images Click or drag one or more JPG/PNG files onto the upload zone. Multi-select is supported — hold Ctrl/Cmd to select many files at once.
3
Arrange page order Thumbnails appear for each image. Drag them to set the correct page order before converting.
4
Set page size Choose A4 (recommended for most portals) or keep original image dimensions. A4 ensures uniform page sizes.
5
Convert & download Click Convert to PDF. Your multi-page PDF downloads instantly.
💡 Tips for Best Results
Use A4 page size for government portal submissions
Double-check page order in the thumbnail grid before converting
If the output PDF is too large for the portal, compress it using the PDF Compressor tool
Open JPG to PDF Converter
✍️
Digital Signature Verifier
Detect embedded digital signatures in PDF files
PDF Inspector

Check whether a PDF document contains an embedded digital signature. Useful for verifying ITR acknowledgements, downloaded certificates, digitally signed government letters, or any PDF where you need to confirm authenticity.

1
Open the tool Visit signature-verifier.html.
2
Upload the PDF Click the upload zone or drag the PDF file onto it. The document is read locally — nothing is sent to a server.
3
View the scan results The tool reports: how many signatures were found, signer name (if embedded), and signing date (if available).
💡 Things to Know
Works well on ITR acknowledgements, e-certificates, and court/government PDFs
This tool detects signatures — it cannot fully validate the certificate chain. For full DSC validation, use Adobe Acrobat Reader
Not all signed PDFs embed signer details — results depend on how the signature was applied
Open Signature Verifier
Frequently Asked Questions
Are my documents safe? Do you upload them to a server?
No. Every tool on this site runs entirely inside your browser using JavaScript. Your files are never uploaded to any server — they stay in your device's memory only. When you close the tab, they are gone. This is a technical guarantee, not just a policy.
Do I need to create an account or sign up?
No account, no sign-up, no email address required. Open any tool and start immediately. All tools are completely free and always will be.
Does it work on my phone?
Yes. All tools are mobile-responsive and work on Android and iOS browsers (Chrome, Firefox, Safari). You can upload photos directly from your phone's camera roll.
My photo was rejected by the PAN portal. What should I check?
The most common reasons for rejection are: file too large (must be under 50 KB), wrong dimensions (must be exactly 213 × 213 px), dark or patterned background, or face not clearly visible. Run your photo through the PAN Photo Resizer tool — it handles size, dimensions, and compression automatically.
What file formats are supported?
Photo tools accept JPG, PNG, and WEBP. PDF tools accept PDF files. The JPG to PDF converter accepts JPG and PNG images. Output formats are JPG or PNG for photos and PDF for document tools.
How much does it cost?
All tools are 100% free — no hidden fees, no premium tier, no credit card. We do not run advertisements either. We are an independent team that builds these tools for public use.
Is my Aadhaar card data safe when using the Aadhaar Formatter?
Yes, completely. The Aadhaar Formatter processes your images entirely within your browser. No image data, no Aadhaar number, and no personal information is transmitted to any server at any point. We have no backend that could receive it even if we wanted to.