Privapixel
Official documentation — Image processing on your computer
What is Privapixel?
Privapixel is a Windows application that combines practical image tools in one place: compress, resize, remove background, and apply watermarks. Processing runs locally on your PC — your files are not uploaded to external servers.
- Compress — Reduce file size with adjustable quality, output format, and optional metadata removal.
- Resize — Change dimensions in pixels or by percentage, with aspect ratio lock and no-upscale option.
- Remove background — AI mode (U²-Net via ONNX) or fast mode for solid-color backgrounds.
- Watermark — Combine logo, text, phone, website, Instagram, and QR code with position and opacity controls.
- Image queue — Add multiple files, preview original vs. result side by side, and batch process.
- Drag and drop — Import images directly into the drop zone.
- Output folder — Choose where to save results and open the folder with one click.
- Windows with .NET Framework 4.8 (or a compatible version indicated by the installer).
- Enough disk space for the app, AI models (when used), and processed images.
- Internet is required only to activate the license, validate registration, and check for updates — image processing does not depend on the cloud.
- For AI background removal, the ONNX model may be downloaded to the app data folder on first use.
- You receive the Privapixel installer. Source code is not included in the package.
- After purchase, use your email and purchase code in the download and license registration flow when available on the website.
- Run the installer, complete setup, and open Privapixel from the Start menu or shortcut.
- On first launch, complete license registration with the details sent by email.
- The app may check for updates automatically on startup by comparing your version with the official server.
Before using the application, you must register your license on the activation screen.
- Enter the email used for purchase.
- Enter the license code you received.
- Registration ties the license to your computer name (machine identifier).
- After successful validation, the app opens normally. Data is stored in
%AppData%\Roaming\Privapixel\reg.dat.
Each license is valid for one computer. Contact support if you need to move to a new machine.
After activating your license, the main interface has four tabs: Compress, Resize, Remove background, and Watermark.
- Add images — Use the add button or drag files into the drop area on the left.
- Queue and thumbnails — Select an item to preview the original and the result.
- Bottom panel — Configure options for the active tab and set the output folder.
- Process — The main action button (Compress, Resize, etc.) applies the operation to the queue or selected item.
- Open folder — Opens the output folder in Explorer after processing.
- Clear — Empties the queue to start a new batch.
The app remembers your last import folder to speed up repeated work.
Reduce file weight for web, email, or storage with fine control over quality and format.
- Mode — Choose Maximum quality, Balanced, or Smallest size.
- Quality — Adjust the percentage slider (especially for JPEG and WebP).
- Output format — Automatic, JPEG, PNG, or WebP.
- Strip metadata — Removes EXIF and similar data to save space and improve privacy.
- Only if smaller — Keeps the original file when compression would not reduce size.
The side preview shows size estimates and lets you compare visually before saving in batch.
Change width and height to standardize catalogs, thumbnails, or social posts.
- Pixels — Enter desired width and height. With Keep aspect ratio, changing one value recalculates the other.
- Percentage — Use shortcuts for 75%, 50%, or 25% of the original size.
- Do not upscale — Prevents small images from being stretched beyond their original dimensions.
Set the output folder and process the queue. Resized images are saved with names derived from the originals.
Isolate the main subject and produce a file with transparency (PNG).
- Local AI (U²-Net) — Recommended for photos, products, and portraits. The model runs on your PC via ONNX; output is PNG with a transparent background.
- Fast mode (solid color) — For flat backgrounds (white, green, etc.). Adjust tolerance (fuzz), automatic color detection, and edge smoothing.
On first use of AI mode, the model may be downloaded. This requires disk space and internet only for the initial download.
Protect or brand your images by combining visual and text elements.
- Logo — Select an image file as your mark.
- Text — Custom phrase or name.
- Phone, Website, and Instagram — Optional contact fields.
- QR Code — Generated from the text or URL you provide.
- Position — Bottom right/left, top right/left, center, or custom with X and Y coordinates.
- Opacity — Control how transparent the watermark appears over the image.
Enable only the elements you need; the preview shows the result before batch apply.
- Older installs under
Local\Privapixel may be migrated automatically to the Roaming folder on first run of recent versions.
- The Strip metadata option in compression helps prevent EXIF data (camera, GPS, etc.) from remaining in the final file.
On startup, the app checks the official server for a newer version. If one is available, you get a prompt to download the installer and review release notes.
We recommend keeping the latest version installed for fixes, new formats, and performance improvements.
- Support covers installation, licensing, and use of the features described in this documentation.
- Custom software development beyond the product scope is not included.
- Custom work may be quoted separately.
- Each license is valid for one computer.