Document scanner
Automatic edge detection, perspective fix, multi-page scans.
Free document scanner app · Android · by DoableLogic
Lekha.Your pocket document studio.
A free document scanner and PDF toolkit for India. Works fully offline: no account, no ads, no uploads. Scan and sign documents, make exam photos to the exact KB, and send GST invoices with a UPI pay QR — everything happens on your phone.
Coming soon to Google PlaySee all 53 features
- Free
- Works offline
- No ads
- No watermark
- No sign-up
Page found — hold still
AUTO
‹
Scan 19 Oct
Page 1 of 1MagicOriginalGrayscaleB&W
Good evening
Your documents
Scan a documentAuto edges · filters · PDF One tap
Quick tools
Exam
photo
Compress
image
Photos
to PDF
Merge
PDF
ID card
copy
Sign
PDF
QR
scanner
Image
to text
Recent
Rent agreement
PDF · 4 pages · 1.2 MBSSC photo
JPG · 48 KB‹
New invoice
INV-042 · 22 Oct 2026RS
Ravi Stores
GSTIN 29ABCDE1234F1Z5 · Karnataka1
A4 copier paper10 Pkt × ₹320 · GST 18%
₹3,0402
Printer servicing1 × ₹750 · GST 18%
₹7503
Notebooks, long24 Nos × ₹45 · GST 18%
₹1,080Taxable₹4,870.00
CGST + SGST₹736.20
Total₹5,606
UPI pay QR on the invoice
Customer scans, amount filled inEverything inside
53 features. One small app.
Scan
Paper to a clean PDF in seconds.
Clean filters
Original, grey, crisp black & white and colour boost.
Image to PDF
Turn JPG, PNG or WebP photos into one PDF, in any order.
ID card copy
Front and back of Aadhaar, PAN or licence on one page.
QR & barcode scanner
Scan codes offline from the camera or a photo, with safe-link checks.
Unsaved scans kept
Up to 10 drafts saved automatically, continue any time.
Quick Scan widget & shortcuts
Start a scan straight from your home screen.
PDF tools
Everything you do with PDFs, on the phone.
Merge PDF
Combine files in any order.
Split PDF
By page range, every page, or pick pages visually.
Organize pages
Rotate, reorder and delete pages.
Compress PDF
Shrink for email and WhatsApp, and see how much you saved.
Sign PDF
Draw, type in handwriting fonts, or use a photo of your signature.
Watermark & page numbers
“COPY”, “FOR KYC ONLY” or your own text, in any language.
Crop pages
Trim margins and borders.
Remove blank pages
Finds empty pages and drops them.
PDF to images
JPG, PNG or WebP up to 300 DPI, shared as a ZIP.
Extract images
Save the photos inside a PDF.
Lock PDF
Add a password.
Unlock PDF
Remove a password you know.
Clean PDF
Remove hidden info, scripts and comments before sharing.
Flatten PDF
Lock filled-in form fields.
Repair PDF
Fix PDFs that won't open.
Photos for forms
Exact sizes for exams, banks and government sites.
Compress image to exact KB
20 KB, 50 KB, 100 KB or any size you type.
Resize & convert
By pixels or %, JPG ↔ PNG ↔ WebP.
Exam photo & signature
Ready sizes for SSC, UPSC, IBPS, NEET and more.
Passport photo
Exam and visa sizes with a white background.
Mask Aadhaar
Hide the first 8 digits for KYC, burnt into the image.
Text
Read and copy text — offline.
Image to text (OCR)
Copy text from photos and PDFs, English and हिन्दी.
Digitize PDF
Make scanned PDFs searchable and copyable.
Invoice maker New
Professional GST invoices in a minute — free.
GST tax invoices
CGST + SGST or IGST worked out from the place of supply.
Quotations
Estimates that turn into an invoice in one tap.
UPI pay QR
Customers scan the invoice to pay; the amount fills in.
Your branding
Logo, signature, three styles and six colours.
Every GST detail
GSTIN check, HSN/SAC, discounts, GST-inclusive prices, round off.
Amount in words
Indian style: “Rupees One Lakh Five Thousand Only”.
Customers & items remembered
Search by name, phone or GSTIN; walk-in customer in one tap.
Automatic numbering
INV-001, INV-002… with duplicate checks.
Multi-page invoices
Long item lists continue neatly on the next page.
Excel export
A monthly sheet with GST split and totals for your accountant.
Invoice backup
Kept in your folder and restored automatically after a reinstall.
Read & organise
All your documents, easy to find.
PDF reader
Every PDF from the folders you choose, in one list.
Open with Lekha
Open or share PDFs from WhatsApp, Downloads or any app.
Pinch & double-tap zoom
Read the small print on any page.
Files & folders
Rename, move, share or save a copy anywhere.
Search
Find any tool or file instantly.
History
What you made and when — reopen or share in a tap.
Password-protected PDFs
Open locked PDFs with their password, privately.
Privacy & safety
Your files never leave your phone.
No internet permission
Lekha can't upload anything — check it in Android settings.
Auto-save copies
Every document also saved to a folder you pick; survives uninstall.
Encrypted backup
A password-protected backup file you keep wherever you like.
App lock
Fingerprint, face or phone PIN; hidden in Recents.
No ads, no account, no watermark
Free, with nothing in your way.
Dark mode
Light, dark, or follow the phone.
Invoice maker
GST invoices, sorted.
Add your business once — logo, GSTIN, bank and UPI. Then pick a customer, add items and save. Lekha works out CGST, SGST or IGST, writes the amount in words, adds a UPI QR so customers pay instantly, and keeps every invoice backed up in your own folder.
- Tax invoices and quotations
- Customers and items remembered
- Monthly Excel for your accountant
- Free — no subscription
‹
New invoice
INV-042 · 22 Oct 2026RS
Ravi Stores
GSTIN 29ABCDE1234F1Z5 · Karnataka1
A4 copier paper10 Pkt × ₹320 · GST 18%
₹3,0402
Printer servicing1 × ₹750 · GST 18%
₹7503
Notebooks, long24 Nos × ₹45 · GST 18%
₹1,080Taxable₹4,870.00
CGST + SGST₹736.20
Total₹5,606
UPI pay QR on the invoice
Customer scans, amount filled inNothing leaves your phone.
Lekha's release build doesn't even ask for internet access. Your scans, signatures and invoices are stored on your phone, with an optional copy in a folder you choose.