Every file you touch here stays on your machine.
PDF, image, developer, SEO, text, student and business tools — all free, all entirely in your browser. No upload, no account, no server ever sees your data.
The toolset
Focused tools covering the everyday PDF work — pick one to get started, no account needed.
How this actually works
Each tool runs entirely with JavaScript already loaded in this page — PDF tools via pdf-lib and pdf.js, image tools via the browser's native Canvas API, and everything else with plain JavaScript. Your files or input are read into browser memory, processed, and handed back as a download or copyable result. This page itself is served by a small Laravel route; Laravel never sees your files either. The only backend in use is Supabase, and only for two optional things: signing in with a magic link, and — only if you're signed in — a log of which tool you ran and when. Two things have real limits worth knowing up front: Compress PDF flattens each page to a re-encoded image (great for scan-heavy PDFs, not ideal if you need selectable text after), and Word/Excel/PowerPoint ⇄ PDF conversion genuinely requires a server-side rendering engine, so it isn't included here — this build only ships tools that can honestly run client-side.
Questions people actually ask
How do I scan to PDF?
Take a photo or choose an existing image, drag the corners to crop to just the document, optionally rotate it or switch to grayscale/black & white, then save. Add more pages the same way, or generate the PDF right away.
Does it work on mobile?
Yes — on a phone or tablet the upload step opens your camera directly. On desktop, choose an existing image file instead.
Can I scan multiple pages into one PDF?
Yes — select several photos at once, or add them one at a time. Crop and adjust each, and they combine into a single multi-page PDF.
Can I rearrange the page order?
Not within this tool — pages are added in the order you select them. To reorder afterward, run the finished PDF through Organize Pages.
Can I select a photo from my gallery instead of taking a new one?
Yes — the upload step accepts any existing image file, not just a fresh camera shot.
Can I scan a receipt or a handwritten note?
Yes — it works with any photographed document: receipts, notes, forms, or printed pages.
Can I scan an ID card or a document with personal information?
Yes — and since nothing is uploaded, sensitive documents like this never touch a server in the first place.
Can I convert a JPG or PNG I already have into a scanned-looking PDF?
Yes — you don't need a fresh photo. Choose any existing image file and the same crop, rotate, and filter tools apply to it.
How secure is this?
As secure as your own device — there's no upload step to intercept, no server storing files, and no account that could be breached, because none of that infrastructure is involved.
Does this correct the photo's perspective if I shot it at an angle?
No — it crops to the rectangle you draw but doesn't correct perspective distortion. For the cleanest result, hold the camera level and roughly straight-on.
Can I turn a colour photo into a black-and-white scan?
Yes — the Style option offers Colour, Grayscale, and Black & White (a higher-contrast grayscale look closer to a traditional scanner's output).
What formats can I save as?
PDF (single or multi-page), JPG, or PNG. Multiple pages saved as JPG or PNG are delivered together in a zip file.
Do I need to install an app for this?
No — it runs entirely in your browser, on any device with a camera and a modern browser. No app store, no install.
Is this really free, and is there a file size limit?
Yes — no account, no paywall. Since processing happens in your browser's memory rather than uploading anywhere, the practical limit is your device's available RAM, not a server quota. Very large files (500+ pages) may run slower, especially for Compress and PDF→JPG.
Does anything about my file get sent anywhere?
No. Every tool runs with pdf-lib/pdf.js loaded in this page; your file is read into browser memory and never leaves it. The only network call this app makes for your account is Supabase auth — and that only stores which tool you ran and when, never file content.
Why isn't Word/Excel/PowerPoint → PDF included?
Converting Office formats accurately needs a real rendering engine (what Word or LibreOffice use internally) — no browser library does this reliably. Rather than ship a broken version, it's left out.
Does TechDriven Tools have OCR (text recognition)?
Yes — OCR PDF recognizes text in scanned or photographed pages using Tesseract.js, running entirely on your device, and gives you a searchable PDF or a plain text file. Nothing is uploaded for this either.
Can I use this without an internet connection?
Once the page and its libraries have loaded once, yes — the tools themselves need no network access. Signing in and viewing history do require a connection, since those talk to Supabase.
What happens to the "history" if I sign in?
Only a row per tool run — the tool's name and a timestamp. No filename, no file content, ever. You can see the full list any time via the History button.
Are the non-PDF utilities (password generator, JSON formatter, etc.) private too?
Yes — same rule as the PDF tools. Word Counter, Case Converter, Password Generator, UUID Generator, Base64, Hash Generator, JSON Formatter and JWT Decoder all run with plain JavaScript already loaded in this page; nothing you type or paste is sent anywhere.
Scan to PDF, in depth
100% free, browser-only, no registration, works on mobile, multiple pages supported.
Features
Manual Crop
Drag the corners to trim exactly to the document's edges.
Rotate
Fix a sideways photo in one tap, 90° at a time.
Grayscale & Black & White
Switch to a traditional scanned look when you don't need colour.
Multi-page PDF
Scan several pages and combine them into one document.
Camera Capture
Opens your phone's camera directly, or pick an existing photo.
PDF, JPG or PNG
Export in whichever format you actually need.
Private by Design
Every step runs on your device — nothing is uploaded.
Instant
No server round-trip, so there's no upload wait.
Why use Scan to PDF
- Digitise paperwork so it's searchable, backed up, and doesn't take up drawer space.
- Archive documents once, safely, instead of keeping a fragile paper original as your only copy.
- Share instantly by email or message, instead of arranging a physical handoff.
- Reduce paper clutter — one photo, one clean PDF, done.
- Print a clean copy later without keeping the original in good condition.
- Works everywhere — any device with a camera and a browser, no software to install.
Supported uses
Receipts & Invoices
Handwritten Notes & Assignments
Contracts & Forms
ID Documents & Certificates
Office Paperwork
Books & Printed Pages
How TechDriven Tools compares
| Feature | TechDriven Tools | Traditional Scanner | Scanner Apps | Desktop Software |
|---|---|---|---|---|
| Speed | Instant, no upload | Depends on device | Usually fast | Depends on install |
| Privacy | Never leaves your device | Depends on device | Varies — check the app's policy | Local, but often needs install/updates |
| Installation | None — runs in browser | Physical device required | App install required | Download & install required |
| Mobile-friendly | Yes | No | Yes | No |
| Free | Always | Hardware cost | Often freemium / ads | Often paid |
| OCR | Not yet available | N/A | Varies by app | Varies by software |
| Multi-page | Yes | Depends on device | Varies by app | Yes |
Privacy
- Files are never stored — nothing is written to a server, ever.
- All processing happens in your browser, using pdf-lib and the Canvas API.
- No registration or account required to use any of this.
- Nothing is transmitted, so there's nothing in transit to intercept.
- Downloads come straight from your browser's own memory to your device.
What is Scan to PDF
Scan to PDF turns a photo of a paper document into a proper digital file — usually a PDF — using nothing but a camera and this page. Unlike a traditional flatbed scanner, there's no separate hardware involved: your phone or laptop's own camera captures the page, and the cropping, rotating, and formatting happen right here in the browser.
Benefits
The core benefit is simple: paper becomes a file you can store, search for, back up, email, or print again without digging through a folder. A digitised receipt survives a spilled coffee. A digitised contract survives a house move. And because this tool never uploads anything, digitising something private — an ID document, a medical form, a signed agreement — doesn't mean trusting it to a server you don't control.
Scanning Tips & Best Practices
- Use even, natural light where possible — a single harsh lamp casts shadows across the page that a phone camera picks up more than your eye does.
- Hold the camera as level and straight-on as you can. This tool crops to a rectangle you draw, but it doesn't correct perspective distortion from an angled shot — the straighter the photo, the cleaner the crop.
- Fill the frame with the document before you crop, rather than cropping a small document out of a large photo — you'll keep more resolution in the final result.
- If the paper has any curl or fold, flatten it first; a curved edge is harder to crop cleanly than a flat one.
Common Mistakes
The most common issue is treating this like an auto-scanner: expecting it to detect the page edges and straighten the photo automatically. It doesn't — the crop is manual, and there's no perspective correction, so a photo taken at a steep angle will still look angled in the crop, just trimmed to size. The fix is almost always in the photo itself: take it more level, closer to straight-on, and the manual crop does the rest cleanly. The second common mistake is scanning multiple pages as separate single-page runs when a multi-page PDF was actually wanted — select every photo at once, or add pages one at a time, so they land in one file instead of several.
Scan to PDF vs. Image to PDF
These sound similar but solve different problems. JPG/PNG to PDF takes images you already have — screenshots, downloaded photos, existing scans — and combines them into a PDF exactly as they are. Scan to PDF is built specifically for photographing a physical document: it adds the crop, rotate, and grayscale/black-and-white steps a real scan needs, which a plain image-to-PDF conversion skips entirely. If your image is already a clean, cropped, upright picture of a document, Image to PDF is faster. If you're starting from a fresh photo of a piece of paper, Scan to PDF is the right tool.
OCR, Explained
OCR (optical character recognition) turns the picture of text in a scanned page into actual, selectable, searchable text — the difference between a scan you can only look at and one you can search or copy from. This tool doesn't include OCR yet: the output is a genuine PDF, but the text inside it is still part of the image, not machine-readable text. A dedicated OCR tool, built for that specific job, is a better fit than bolting a partial version onto this one — and it's honest to say so rather than label this "OCR Ready" when it isn't.
Security
There's no upload step here, which removes an entire category of risk other tools carry: a photo of a passport or a signed contract never leaves your device to be intercepted in transit, stored on a server, or exposed in a data breach, because none of that ever happens. The trade-off is exactly what you'd expect from software with no backend: no cloud sync, no account to recover a file from if you close the tab too early. For anything you intend to keep, download it before you navigate away.
Mobile Scanning
On a phone, the upload step opens the camera directly rather than a generic file picker — the fastest path from paper in hand to photo taken. The crop handles are sized and spaced for a thumb, not just a mouse cursor, and every control works the same way whether you're tapping or dragging. There's genuinely no reason to reach for a separate scanning app for something you can do in the same browser tab you're already in.
Business and Education Use Cases
In an office, this covers the paperwork that still arrives on paper despite everything else being digital: signed contracts, delivery receipts, expense receipts for reimbursement, forms a client handed over in person. In a classroom, it's assignments handed in on paper that need to go into a digital gradebook, handwritten notes worth keeping past the semester, or a worksheet that needs sharing with a student who missed a class. Neither case needs an app installed on a shared or managed device — a browser is already there.