Simple desktop tools that respect your privacy
Convert, split, watermark and read your files entirely on your own PC. Nothing is uploaded — ever.
Practical software that boosts productivity
From PDF and image conversion, merging, slicing, watermarking, format conversion and OCR, to smart enhancements such as image upscaling and colourising black-and-white photos, and on to specialised tools for engineering workflows — we offer a complete suite of lightweight Windows applications covering everyday office and professional needs. Every tool runs 100% offline, your data stays on your device and is never uploaded to the cloud. Batch processing and one-click operation make repetitive work simple and professional work more efficient.
Our software is priced between $0.99 and $1.99 — far below the price of half a cup of coffee, yet here it buys you a handy tool and an extra pair of hands at work. However you look at it, the math works in your favour.
Honestly, leaving aside the effort our developers put in, this price does not even cover the electricity and depreciation of the computer. Our reason for building this software is simple: put the technology our team has accumulated over the years to the use it deserves — bringing you efficiency and value, and value to us as well.
100% local
Files are processed on your device. No cloud, no upload.
Zero bugs
Tested hundreds of times with automated and manual testing in parallel, so it works straight out of the box with high compatibility and no bugs.
Ultra-low price
One-time purchase for less than half a cup of coffee. No subscriptions, no hidden fees, full functionality included.
Focused tools
Each utility does one task and does it well — to perfection.
Practical tools to boost efficiency
Each tool does one job well — fast, ultra-low-price and local.
Pdf To Pictures
Local, offline, privacy-first PDF-to-image converter
Learn morePicturesToPDF
Batch merge JPG & PNG into one PDF — offline, lossless, no blur, no distortion
Learn moreYuheng Picture Slice
Local image slicing tool — split by equal rows/columns or fixed dimensions, with batch & multi-format export
Learn morepic watermark
One-click text or logo watermarks on your images — batch processing, 6 export formats, fully offline
Learn morepicture convert
Fully offline image format converter — 13 formats including HEIC/PSD
Learn moreimage to text - pic to text
Fast & accurate offline OCR — turn any image into editable text in seconds
Learn moreYuheng XML Reader
Lightweight XML parsing tool — runs entirely on your local machine
Learn more