TinEye - Reverse Image Search to help find an image's source, duplicates or altered versions.
ABBYY FineReader - ABBYY's latest PDF editor software, FineReader 16 you can easily convert files like PDF to Excel, PDF to Word, edit, share, collaborate & more with this PDF editor!
GImageReader - gImageReader is a simple Gtk/Qt front-end to the Tesseract OCR Engine.
Tesseract - Tesseract is an optical character recognition engine for various operating systems
Microsoft Lens - Microsoft Lens (formerly known as Office Lens) is an all-in-one application designed for Windows, Android, and Apple devices, allowing you to capture important information from signs, PDFs, whiteboards, and more to add.
Google Images - Google Images is a search service owned by Google that allows users to search the World Wide Web for image content.