Free and open source, for Windows

Photo and PDF editing, on your own machine.

Fix images, pull text out with OCR, and export clean PDFs. Microsoft Paint is wired in for quick cut-and-select edits. No account, no subscription, nothing is uploaded.

Download v1.0.0View source

Windows 10 / 11 (64-bit) · GPL-2.0

Features

What it does

APDocs Studio is a desktop app for scanning, editing and exporting documents. It is a fork of NAPS2, with Paint integration, its own branding and this website added on top.

Photo editing

Brightness and contrast, saturation and hue, sharpness, crop and rotate, auto deskew, black and white, and blank page detection for batches.

PDF tools

Open an existing PDF and edit it page by page. Export a normal or searchable PDF, merge images into one PDF, drag pages into a new order, and balance file size against image quality.

OCR

Text extraction with Tesseract in 40+ languages. The text can sit in the PDF as an invisible layer, so the file is searchable and copyable.

Paint integration

Open any page in Microsoft Paint, use Select and Cut, save, and the change shows up back in APDocs Studio.

Using Paint

Edit a page in Paint

Paint comes with Windows. Right-click a page in APDocs Studio and choose Edit with Paint, then pick a recipe.

  1. Right-click a page, then Edit with Paint.
  2. In Paint's Home tab, click Select, then Rectangular selection.
  3. Draw a box around the area to remove.
  4. Press Delete or Ctrl+X. It fills with white.
  5. Press Ctrl+S. APDocs Studio reloads the page.
  1. Click Select, then Free-form selection.
  2. Draw around the exact shape you want to keep.
  3. Ctrl+C, Ctrl+N, Ctrl+V to paste onto a clean canvas.
  4. Save, then export as PDF from APDocs Studio.
  1. Right-click Color 2 in Paint and set it to white.
  2. Use Rectangular selection to box the watermark.
  3. Press Delete. It fills with white.
  4. Ctrl+S, then export a clean PDF.
  1. Draw a Rectangular selection around the region to keep.
  2. Click Image, then Crop (or Ctrl+Shift+X on Windows 11).
  3. Ctrl+S. APDocs Studio picks up the cropped image.
Download

Get APDocs Studio

Download v1.0.0All releases

Requirements

  • Windows 10 or 11 (64-bit)
  • .NET 9 runtime
  • Microsoft Paint (pre-installed on Windows)

To build from source, clone the repository and run dotnet build APDocsStudio.sln. Keyboard shortcuts are on the wiki.

APDocs Studio is built on NAPS2, which provides the core document processing, image pipeline, OCR integration and PDF engine. NAPS2 is licensed under GPL-2.0, copyright © NAPS2 Contributors. APDocs Studio is also distributed under GPL-2.0, and its source code is public in the repository. See the LICENSE for full terms.