TinEye - Reverse Image Search to help find an image's source, duplicates or altered versions.

DocParser - Extract data from PDF files & automate your workflow with our reliable document parsing software. Convert PDF files to Excel, JSON or update apps with webhooks.

GImageReader - gImageReader is a simple Gtk/Qt front-end to the Tesseract OCR Engine.

PDFChef by Movavi - Edit and convert PDF files online, right in your browser

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.

KDAN Mobile PDF Reader - PDF Reader is the one app you can rely on when you need a portable solution to work with PDFs.