FREE Document scanner & PDF kit for Android

Scan. Shrink. Share.

Every document job, done on your phone. Scan any page to a clean PDF, get your photo and signature to the exact KB the form asks for, squeeze a PDF under 200 KB, and convert any image – in one app, without a cyber cafe or a sketchy upload site.

  • Works offline
  • No account
  • No forced watermark
  • English & हिंदी
710 KB→50 KB

Passport-size photo for an online form

334 KB→17 KB

Signature, cropped to 350×140 px

2.4 MB→185 KB

Two-page scanned PDF, still readable

2 sides→1 page

ID card front and back, like a photocopy

Every number above was produced by the app itself on sample files.

Form uploads

“File size too large.” Never again.

Exam, admission, scholarship and job application forms all want a photo, a signature and documents at a strict size. ScanSathi hits that size on the first try.

Form Assistant

Photo and signature to the exact KB

Pick a photo, tap the size your form asks for, done. No guessing with quality sliders, no uploading your face to a random resizing website.

  • Ready-made sizes – photo 20–50 KB, signature 10–20 KB, thumb impression 20 KB, documents under 100/200/500 KB
  • Any custom target – type 30 KB, 75 KB, whatever the form says
  • Exact pixel dimensions when a portal insists on width and height
  • Signature to transparent PNG – lifts the ink off the paper
Form Assistant showing a passport photo resized to 50 KB at 1020 by 1275 pixels, with Save and Share buttons
Form Assistant showing a signature resized to 17 KB at 350 by 140 pixels
Compress PDF

Any PDF under 200 KB in one tap

Marksheets, certificates and multi-page documents come out of a phone camera at several MB. Choose a limit and ScanSathi brings the file under it while keeping the text sharp enough to read.

  • Under 200 KB, 500 KB, 1 MB or 2 MB – or an exact KB target
  • Merge several scans into one PDF before you compress
  • Password-protect a PDF with AES-256 encryption
Compress sheet offering Under 200 KB, Under 500 KB, Under 1 MB and Under 2 MB for a 2.4 MB PDF
Scanned rental agreement with the message Compressed to 185 KB

Image & PDF converter

Every converter you keep googling, in one app

Stop opening a new website for every format. Convert, compress, crop and resize on your phone – your photos never get uploaded anywhere.

JPGPDF Photos to PDFMany pictures, one file
PDFJPG PDF to imagesEvery page to your gallery
HEICJPG HEIC to JPGiPhone photos any portal opens
WEBPJPG WebP to JPGDownloaded images, fixed
PNGJPG PNG to JPGMuch smaller to send
JPGPNG JPG to PNGLossless, every pixel kept
JPGWEBP JPG / PNG to WebPSmaller at the same quality
IMGTEXT Image / PDF to textEnglish, हिंदी, मराठी

Image tools

  • Compress to exact KB
  • Resize to exact pixels
  • Passport photo
  • Crop
  • Rotate
  • Upscale
  • Blur
  • Enhance
  • Signature to PNG

PDF tools

  • Compress
  • Merge
  • Split
  • Extract pages
  • Delete pages
  • Reorder
  • Rotate
  • Password (AES-256)
  • Page numbers
  • Remove blank pages
  • Watermark
  • Print

Scan & capture

  • Document scan
  • ID front & back
  • A4 ID card sheet
  • Import PDF
  • Import photos
  • QR code
  • Barcode

All of it lives in one searchable Tools hub – type “photo to pdf” or “compress” and it is there.

See it work

Real screens. Real results. Under 25 seconds.

Every film is the actual app on sample documents – no mock-ups. Tap one to play with sound.

0:23
Resize a photo to 50 KBFour steps, start to finish
0:20
PDF smaller than 200 KB2.4 MB down to 185 KB
0:19
Photo too big for the form?Photo and signature, exact KB
0:16
ID front & back, one pageNo photocopy shop needed
0:16
Copy text from any pageEven Hindi. Even offline.
0:24
स्कैन करें। छोटा करें। शेयर करें।The full tour, in Hindi

Everything else

The rest of your document life, sorted

The everyday jobs a scanner should handle – plus a few you will wonder how you managed without.

Scan to a clean PDF

Snap, and the page is found, straightened and cropped for you – drag the corners only if you want to. Grayscale, enhanced and black & white filters remove shadows and whiten the paper, like a real scanner.

  • Auto edge detection
  • Auto-capture
  • Multi-page
  • Smart file names
  • No forced watermark

ID front & back on one page

Scan both sides of a card and get one tidy page, exactly what college offices, hostels and banks ask for. Need several cards? The A4 card sheet lays them out to print and cut.

Copy text, offline

Turn a notice, a page of a book or a printed form into editable text in English, Hindi or Marathi. No internet needed.

A library that files itself

ID proofs, bills and education documents sort into folders on their own. Search by name or by the words inside a scan.

QR & barcode scanner

Read any QR code or barcode, then copy, share or open the result.

Hide numbers before you share

Sharing an ID copy? The app can find an ID number and blur it on the copy you send, and you can cover anything else by hand. The original stays untouched.

Locked, backed up, recoverable

Fingerprint lock keeps your certificates private. Export everything as one ZIP for a new phone, and deleted scans wait 30 days in the bin.

Light on budget phones

Built for 2 GB RAM. Heavy work runs in the background, and a 1-tap home-screen widget opens the scanner straight away.

Inside the app

Clean, fast and in your language

English or Hindi, light or dark. Swipe through the real screens.

For students

Made for the semester, not just the scan

From the first admission form to the last job application, these are the jobs ScanSathi does every day.

Applications

Exam & job application forms

Resize your photo to 20–50 KB and your signature to 10–20 KB, or to the exact pixel size the portal lists, then upload without a single “file too large” error.

Admissions

Admission & scholarship portals

Scan marksheets, certificates and fee receipts to PDF and compress each one under 200 KB or 500 KB so it fits the upload box.

Classwork

Notes & assignments to one PDF

Photograph handwritten pages, turn them into a single PDF in the right order and send it to your class group or teacher in seconds.

Hostel & PG

ID copies without a photocopy shop

College office, hostel warden or new PG owner wants an ID copy? Front and back on one page, shared as a PDF, with numbers you choose hidden.

Study

Copy text from books & notices

Grab a paragraph from a library book or a Hindi notice board photo and paste it into your notes, no retyping.

Formats

“This file type is not supported”

A friend's iPhone sent HEIC, a site downloaded WebP, the portal wants JPG. Convert it in two taps, then shrink it to size.

हिंदी में भी

स्कैन करें। छोटा करें। शेयर करें।

फ़ोटो और सिग्नेचर को फ़ॉर्म के सही KB में बदलें, PDF को 200 KB से छोटा करें, ID कार्ड आगे-पीछे एक ही पेज पर पाएं और किसी भी पेज से हिंदी टेक्स्ट कॉपी करें। पूरा ऐप हिंदी में चलता है – सेटिंग्स में भाषा बदलें।

हिंदी में ScanSathi होम स्क्रीन

Private by design

Your documents stay on your phone

Upload sites keep a copy of whatever you give them. ScanSathi has no document server at all.

Processed on the phone

Scanning, PDF tools, image conversion and text extraction all run on your device.

No account, no sign-in

Open the app and start. There is nothing to register and nothing to sync.

Works offline

Scan, shrink, convert and copy text in airplane mode. The free version goes online only to show ads.

Your backup, your choice

Export a single ZIP and keep it wherever you trust – a laptop, a pen drive, your own cloud.

Built in India. Designed for everyone.

Pick your region once and the app learns which ID numbers to look for, how to file your scans and which upload sizes to offer.

  • IndiaAadhaar, PAN, Voter ID, DL
  • USASSN, driver licence
  • UKNI & NHS numbers
  • EuropePassport MRZ, IBAN
  • JapanMy Number
  • EverywhereCards, passports

ScanSathi Pro

One payment. Yours forever.

The free app already does everything on this page. Pro is for people who want it quieter – and want to support independent software made in India.

  • No ads at all – after which the app makes no network connections
  • Every enhancement filter unlocked
  • No masking watermark on shared ID copies
  • One-time payment – no subscription, ever

FAQ

Questions, answered honestly

How do I resize a photo to 50 KB or a signature to 20 KB for an online form?

Open Form Assistant, choose the photo or signature, then tap a preset (photo 20–50 KB, signature 10–20 KB, thumb impression 20 KB) or type the exact KB the form asks for. ScanSathi resizes it on your phone and you can save or share the result. In our test a 710 KB photo came out at 50 KB and a 334 KB signature at 17 KB.

How do I compress a PDF to under 200 KB?

Open the PDF in ScanSathi, tap Compress and choose Under 200 KB (or 500 KB, 1 MB, 2 MB). The text stays readable. A 2.4 MB two-page agreement compressed to 185 KB in our test.

Can ScanSathi convert HEIC, WebP, PNG and JPG images?

Yes. ScanSathi converts HEIC to JPG, WebP to JPG, PNG to JPG, JPG to PNG, and JPG or PNG to WebP. It also turns photos into one PDF, saves PDF pages as JPG images, and copies text out of images and PDFs. All conversions run on your phone.

Can I put both sides of my ID card on one page?

Yes. Choose ID front & back, scan both sides, and ScanSathi saves them on a single PDF page, ready to share or print. There is also an A4 sheet that fits several cards on one page to print and cut out.

Can I copy Hindi text from a photo?

Yes. ScanSathi reads English, Hindi and Marathi text from a scan or photo without an internet connection. Copy it, share it, or save it as a .txt file.

Is ScanSathi free? Does it add a watermark?

Yes, it is free, and scans have no forced watermark. The free version shows a few ads. ScanSathi Pro is a small one-time payment that removes ads and unlocks every filter. No subscription.

Does ScanSathi upload my documents?

No. Scanning, PDF tools, image conversion and text extraction run on your phone, and there is no ScanSathi account or document server. The free version uses the internet only to show ads; Pro removes those too.

Will it run on a budget phone?

Yes. ScanSathi is built for phones with 2 GB of RAM: heavy image work runs in the background and a Lite mode lowers capture resolution on low-memory devices.

Is ScanSathi a government app?

No. ScanSathi is an independent app by MindGrid Labs. It is not affiliated with, and does not act for, any government entity or exam body. For official Aadhaar information, visit UIDAI.

Your next form takes two minutes.

Install ScanSathi free and keep a scanner, a PDF kit and every image converter in your pocket.

QR code linking to ScanSathi on Google Play Scan with your phone