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Kaizen OCR & PDF · Windows 10/11

See text.
Get text.

The best desktop OCR tool you’ll ever use — and the last one you’ll need to download. Two OCR engines, Azure-powered searchable PDF, an image editor with share links, and a full PDF toolkit. Point it at anything — an image, a PDF, your screen — and get clean text out. You’ll save hours every week.

Free tier: 7 ops / feature 100+ OCR languages Offline by default Lifetime licenses
2
OCR engines
100+
Languages
15
Tools in one
100%
Offline default

Fifteen tools. One clean app.

Every feature is one click away on the dashboard. No wizards, no learning curve — just tools that do exactly what they promise.

“I built every feature here because I needed it myself. I use this tool daily — and I think you’ll love it too.”
Simple OCR

One click. Any image or PDF. Clean text out.

Drop in a photo, scan, screenshot, or PDF — pick your engine, hit run. Results show up with confidence scores and automatic table detection. Copy to clipboard, save to text, or feed straight into the next step.

  • Paddle AI for speed (local inference, GPU-accelerated if available)
  • Tesseract fallback for scanned documents & older layouts
  • Table detection with cell-level recognition
  • Confidence score per block — see exactly what’s uncertain
  • Input: PNG, JPG, JPEG, BMP, TIFF, GIF, WEBP, PDF
Kaizen OCR Simple OCR interface showing extracted text with confidence scores
Advanced OCR

Batch, preprocess, and refine at scale.

Feed in a folder of scans and let Advanced OCR work through them. Preprocessing options clean up noisy originals before recognition — deskew rotated pages, remove alpha channels, threshold light scans, apply denoising.

  • Multi-file batch processing with per-file progress
  • Preprocessing: denoise, deskew, rotate, crop, threshold, remove alpha
  • Language selection for more accurate recognition
  • Confidence-threshold highlighting (green = confident, yellow = review)
  • Export per file or combined — text, clipboard, or file
Kaizen OCR Advanced OCR with batch processing and preview
Searchable PDF · Premium (BYOK)

Turn flat scans into fully searchable PDFs.

Kaizen OCR connects to your own Azure Document Intelligence resource. Bring your key, and we generate selectable-text overlays directly on top of scanned pages. Choose the Read model for text+tables flow or Layout to preserve formatting.

  • Outputs: searchable PDF, plain text, Markdown, HTML, or JSON
  • Read model: $1.50 / 1000 pages · Layout: $10 / 1000 pages
  • Keys stay local — stored in an encrypted SQLCipher DB on your machine
  • Test-connection button so you know it works before burning quota
  • No Azure key? The feature is gated, but the rest of the app works fully offline
Kaizen OCR Searchable PDF with Azure Document Intelligence configuration
Screenshot capture & hotkeys

Press a key. Read the screen.

Six customizable global hotkeys turn the system tray into your OCR command center. Capture the full screen or a region, instantly or with a delay, and route it to Simple or Advanced OCR depending on how much post-processing you want.

  • Fullscreen capture + OCR — default Ctrl + Shift + F6
  • Region capture + OCR — draw a box on any screen
  • Delayed variants — capture menus and dropdowns without the key closing them
  • Screenshot-only modes — grab without running OCR
  • Auto-routing: Simple OCR or Advanced OCR, your choice
  • Auto-delete screenshots after 1 hour to keep the folder tidy
Kaizen OCR screenshot capture UI and tray hotkey settings

Every PDF operation you keep reaching for.

No browser uploads. No “free trial, now pay $9.99”. Just the PDF tools on your desktop.

Create PDF

Combine PDFs and images into one custom document. Reorder pages, insert blanks, add text annotations (9 positions, custom font/color).

Merge / Split

Combine multiple PDFs into one, or pull individual pages and ranges out into separate files. Preview before saving.

PDF to Text

Three extraction modes: direct (embedded text), Tesseract OCR, or Paddle OCR. Per-page status tracking, export to TXT or clipboard.

PDF to Image

Export every page as PNG, JPG, BMP, TIFF, or WEBP. Perfect for archival, web use, or feeding into image tools.

Add PDF password

AES-encrypt sensitive PDFs with a password. Fast, reversible, no re-uploading to sketchy online tools.

Remove PDF password

Strip password protection from PDFs you own — paste the password, done.

Extract images from PDF

Pull every embedded image out of a PDF as its own file. Useful for asset recovery, design handoff, or visual QA.

Convert files

Convert between PNG, JPG, BMP, TIFF, WEBP, GIF, and PDF in both directions. Batch-friendly.

Combine images

Stitch multiple images into one horizontal or vertical composite — handy for long receipts, chat logs, and multi-part scans.

Image Edit

Open any image in the built-in editor. Add text annotations (14–64px), draw colored rectangles, undo with Ctrl+Z. Mark up screenshots before sharing.

Share Link Pro

One click: upload your edited image, get a shareable link copied to clipboard. Perfect for bug reports, feedback, Slack threads — no file attachment needed.

Image tools

Straighten, annotate, share — then OCR.

Image Deskew straightens skewed scans in one click. Combine Images stitches receipts and chat logs. And the built-in Image Editor lets you annotate captures with text and rectangles before sharing — perfect for bug reports, feedback, and quick visual notes.

  • Auto-detect document edges and deskew with OpenCV perspective-transform
  • Horizontal or vertical image stitching with preview
  • Image Editor: add text annotations (font size 14–64px) and rectangles with custom colors
  • Share Link (Pro): upload the edited image and copy a shareable URL to clipboard in one click
  • Undo support (Ctrl+Z) in the editor
  • Output to PNG, JPG, BMP, TIFF, or WEBP
Kaizen OCR Image Deskew with perspective correction

Three engines, picked for the job.

Not every document wants the same OCR. Here’s how to pick.

  Paddle AI Tesseract Azure Doc Intel
SpeedFast (local, GPU if available)Moderate (CPU)Network-bound
Accuracy on clean textExcellentVery goodExcellent
Accuracy on scanned docsVery goodExcellentExcellent
TablesBuilt-in detectionLimitedBest-in-class (Layout)
Searchable PDF
Offline
CostFree with appFree with app$1.50–$10 per 1000 pages (your Azure bill)
Best forDay-to-day OCR, batch jobsOlder scans, specialty languagesSearchable PDFs, complex layouts

Over 100 OCR languages, bundled

No downloads, no packs. English, Hindi, Chinese, Arabic, Cyrillic — and 100+ more included in the Tesseract data that ships with the app.

English हिन्दी Hindi 中文 Chinese (Simplified) 繁體中文 Chinese (Traditional) 日本語 Japanese 한국어 Korean العربية Arabic Español Français Deutsch Português Italiano Русский Russian தமிழ் Tamil तेलुगु Telugu বাংলা Bengali ยาย Thai Tiếng Việt Vietnamese Türkçe Turkish Polski English हिन्दी Hindi 中文 Chinese (Simplified) 繁體中文 Chinese (Traditional) 日本語 Japanese 한국어 Korean العربية Arabic Español Français Deutsch Português Italiano Русский Russian தமிழ் Tamil तेलुगु Telugu

Pick your tier. Keep it forever.

Every plan has a free tier with real utility. Yearly if you want renewable; Lifetime if you want to pay once.

Free

$0
forever
  • 7 ops per feature
  • Paddle AI + Tesseract OCR
  • All PDF tools
  • Screenshot capture & hotkeys
  • 100+ OCR languages
  • Searchable PDF (Azure)
Download Free

Lifetime

$79
one-time · yours forever
  • Everything in Pro
  • No renewals, ever
  • Lifetime updates
  • Transferable between your devices
  • Priority support
Get Lifetime
3-day no-questions-asked refund · Secure payment via Paddle
Up to 50% off

Doing something good? We’d love to help.

If you’re a student, running a non-profit, working for a cause, or making a positive impact on people, the planet, or the climate in any way — we’d love to play our small part. Send us a short note about what you do, and we’ll offer you up to 50% off any Kaizen license. Because we also want to give back.

Students Non-profits Climate & cause work Positive impact
Email [email protected]

No paperwork, no forms — just a short note about what you do. We review every request personally.

Free vs Pro / Lifetime

Feature Free Pro / Premium
Simple OCR (Paddle + Tesseract)7 / featureUnlimited
Advanced OCR (batch, preprocessing)7 / featureUnlimited
All PDF tools (create, split, password, etc.)7 / featureUnlimited
Image tools (deskew, combine, convert)7 / featureUnlimited
Screenshot capture + global hotkeys
Image Edit (annotate with text + rectangles)
Share Link (upload & copy shareable URL)
Searchable PDF (Azure Doc Intel, BYOK)
Priority email support
LicenseForever freeYearly or lifetime

Common questions

No — Simple OCR, Advanced OCR, all PDF tools, image tools, screenshot capture, and hotkeys run entirely offline on your machine. The only online feature is Searchable PDF, which uses your own Azure Document Intelligence key (optional, Premium).
Start with Paddle AI — it’s fast and accurate on most documents. For older scans, low-quality images, or specialty languages, try Tesseract. For searchable PDFs with complex layouts or tables, set up Azure Document Intelligence.
Each feature (Simple OCR, Advanced OCR, Create PDF, etc.) has its own counter. You get 7 free uses of each before the feature prompts you to upgrade. Unused quotas don’t expire. Hotkeys and screenshot capture are completely free.
We strongly recommend trying the free version first — it gives you 7 runs per feature, which is enough to know if the tool fits your workflow. If you do purchase and it’s not right for you: within 3 days, no questions asked, full refund. Within 7 days, we’ll review on a case-by-case basis depending on the issue. Email [email protected] with your order details.
You pay Microsoft directly based on pages processed. The Read model is $1.50 per 1000 pages, Layout is $10 per 1000 pages. Azure also offers a free tier (500 pages/month on F0) which is usually enough for personal use. We don’t take a cut. Setup guide here.
No — unless you explicitly use the Searchable PDF feature, which sends the document directly to your own Azure endpoint. Nothing routes through our servers. Your Azure keys are stored encrypted in a local SQLCipher database.
Input: PNG, JPG/JPEG, BMP, TIFF, GIF, WEBP, PDF. Output: PDF, TXT, PNG, JPG, BMP, TIFF, WEBP. Plus Markdown, HTML, and JSON when using Azure Document Intelligence Layout model.
Receipts: yes, Combine Images is actually built for long receipts — stitch them first, OCR as one. Tables: yes, detected automatically in Paddle and pristine in Azure Layout. Handwriting: mixed — Azure handles it best; Paddle is decent on clean printing.
Not natively — Kaizen OCR is a Windows desktop application (Windows 10/11). It should run under Parallels/CrossOver on Mac, but we only test on Windows.

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The tool you’ll wish you’d found sooner.

15 features that actually work. Built by a developer who uses them every day. Download free — 7 runs per feature, no credit card. You’ll save hours this week alone.