PDF & Photo Toolkit

Created by Ram Lakhan Meena, INSPECTOR CBIC · 2026-10-27

Split a PDF to fit an upload limit, compress it, reorder its pages, fill and sign it, number the pages by hand — and make the passport photo and signature every form asks for, in exactly the size, resolution and file size it wants.

• Cost: ₹0. No Play Store, no server, no subscription.
• Private: the PDF and the photos are worked on inside the phone or computer. Nothing is uploaded, ever.
• Works offline once it has been opened (reading scans with OCR excepted).
• Share the file just made straight to Gmail, Drive or WhatsApp with the Share button.

Open it: https://rlm-pdf-toolkit.github.io/ Android app: https://github.com/rlm-pdf-toolkit/rlm-pdf-toolkit.github.io/releases/latest/download/PDF-Toolkit.apk

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1. What it does

Tab	What for
Split by size	Upload limit of 5 MB? It measures every page and suggests where to cut so each part fits. Cut by eye on page previews, name each part, download as a ZIP.
Compress	Quality slider 0–100 with a recommended setting and a before/after preview of a page. Also puts 2, 4, 6, 8 or 9 pages on one sheet.
Scan (top of the page)	Scan pages with the camera into a new PDF, like a scanning app: edges found, page straightened to its true shape, shadows lifted, paper white. Scanned colour, grey, black & white, or the original photo. Or make a PDF from photos on the phone.
Organise pages	Move, turn, remove, duplicate pages; insert another PDF, a blank page, or scanned pages from the camera anywhere. Click a page to see it full screen, zoom in, and act on it there. Undo.
Number & stamp	Pencil-style page numbers that skip blank pages; a line of text anywhere; a watermark; your signature, blended into the paper so it looks signed.
Auto-split	Splits a bundle where a new document begins — printed page numbers restarting, a heading, a blank separator sheet. Reads scans with OCR.
Fill & edit	Click anywhere to type. The text takes the font, size and colour of the printed text beside it and sits on its line. Ticks, crosses, boxes, lines, white-out, highlight, photos, signatures and scanned cards or papers.
Photo & sign	Passport/form photo, signature, and documents (Aadhaar, PAN, certificates, any picture: straightened, cleaned, cropped to any shape). Photo and signature: crop, size in mm/cm/inch/pixels, DPI written into the file, KB limits met automatically, background removed (also behind hair), name and date below, a print sheet of copies. Take it with the camera right in the app.

2. Put it on your phone

Android — as an app (APK)

1. On the phone, open https://github.com/rlm-pdf-toolkit/rlm-pdf-toolkit.github.io/releases/latest/download/PDF-Toolkit.apk
2. Tap the downloaded file → Install. The first time, Android asks to allow installs from Chrome / Files: Settings → Allow from this source, back, Install. Play Protect may say "unknown app": More details → Install anyway.

Android or computer — from the browser

Open https://rlm-pdf-toolkit.github.io/ in Chrome or Edge and tap Install as an app at the top (or ⋮ → Add to Home screen → Install).

iPhone / iPad

Open the address in Safari → Share → Add to Home Screen.

3. Updates

Every change pushed to this repository is live on the website within a minute or two, and reaches the Android app too — the app opens the website, so it does not need a new APK. When a newer version is ready, the open app shows "A newer version is ready — Update now".

The APK itself is rebuilt by GitHub only when the android/ folder changes.

4. Its own address, apart from Kaasu

The toolkit has a website of its own, https://rlm-pdf-toolkit.github.io/, served from this repository (rlm-pdf-toolkit.github.io in the free GitHub organization rlm-pdf-toolkit). It must not go back into a folder of rlm1711204.github.io: that website is Kaasu's, and a Kaasu installed from Chrome opens every link on it — so the toolkit's link would open Kaasu.

If the address shows 404: open https://github.com/rlm-pdf-toolkit/rlm-pdf-toolkit.github.io/settings/pages, set Source → Deploy from a branch, Branch → main, folder / (root), Save.

Full-screen Android app: .well-known/assetlinks.json in this repository is the website vouching for the APK (see android/README.md).

5. Files

Path	What it is
index.html	The whole toolkit. Its first comment carries the version log, newest first.
sw.js	Keeps the app on the phone for offline use. Raise VERSION with each release.
manifest.webmanifest, icons/	What makes it installable, and its icon.
lib/	The libraries it runs on, kept here so it never depends on another website.
models/	The two background-removal models, loaded only when used.
android/	The Android app (see android/README.md).
.well-known/assetlinks.json	Lets the Android app open full screen.
tests/	Checks for the engines inside index.html: npm test (Node 18+).
colab/	The original Colab notebook the toolkit grew from (v1.0).

6. Version history

Every version from v1.0 is a commit of its own in this repository's history, dated to its version-log entry, with that entry as the commit message — git log (or the Commits page on GitHub) shows what changed in each.

7. Credits and licences

Built on pdf-lib (MIT), pdf.js (Apache-2.0), JSZip (MIT), TensorFlow.js (Apache-2.0) and, for OCR only, tesseract.js (Apache-2.0). Background removal uses Google MediaPipe's selfie segmentation model (Apache-2.0) and Robust Video Matting by Peter Lin (GPL-3.0), as converted in @vladmandic/human-models (MIT). Details in THIRD_PARTY_NOTICES.md.