Windows XP SP3, Vista, 7, 8, 8.1, or 10.
On Windows 7 and earlier, you may need to install the .NET Framework 4.0 first.
You will need to install the following packages.
Older versions of Mono may work with some issues. Follow these instructions to install the recommended version.
mono-devel (5.17 or later)
tesseract-ocr for OCR
tesseract-ocr-LANG where LANG is the 3-letter language code (reference)
You can download NAPS2 from the download page. There are a few options:
Linux users must use one of the portable archives.
To scan with NAPS2, you need to create at least one profile. A profile stores a reference to a particular scanning device, and all the settings used to scan with it.
To create a profile, click the Profiles menu button, then click Add. Type a name for your profile, e.g. "Canon MP495 (color)".
There are two types of drivers: WIA and TWAIN. If you don't know the difference, try WIA. If you encounter problems (e.g. you can't find your device), try TWAIN instead. Once you've selected a driver, click Select Device and select the scanner you want to use.
Once you've selected a device, you can change the settings used to scan.
When you're done, click OK to save your profile. You can then create more profiles if you want, or press Done to go back to the main window.
Once you've created a profile, you can now scan. Click the Scan menu button. If you want to choose a different profile, click the dropdown arrow instead. That's it! If you selected "Use native UI" in your profile, a TWAIN/WIA window will pop up allowing you to scan.
If you want to scan more pages, click the Scan button again.
Once you've scanned one or more pages, they will appear as thumbnails in the main window. You can select thumbnails by clicking on them, and use the menu buttons to rotate/flip/reorder/delete them as required. You can also clear all scanned images and start over.
The Save PDF button will prompt you to save your pages as a .pdf file.
The Save Images button will prompt you to save your pages as .png, .jpeg, .tiff, or other image file formats.
The Email PDF button lets you start composing an email with a PDF attachment with a single click.