How to extract text from pdf on Windows? It is a scanned PDF

OCRFeeder is an open-source tool you can use to extract text from scanned pdf offline, offering advanced control over the OCR process for accurate results.

Instructions: Download and install the software from the official website, import the scanned PDF file, define the text recognition area, select the appropriate language, run the OCR process, and then export or copy the recognized text.

Its advantages include being open-source, offering full offline functionality, and providing advanced control options that allow users to customize OCR settings to improve recognition accuracy.

Its disadvantages include a steep learning curve, making it more suitable for advanced users; limited native support for Windows and macOS, with a primary focus on Linux users; and slower processing speeds when handling large, multi-page PDF files.

Notes:

• For low-resolution, skewed, or complex-layout scanned documents, you must manually select the text area to achieve optimal results.
• Windows/macOS users must compile the software themselves or use a third-party packaged version; the installation process is relatively cumbersome.
• Processing large, multi-page PDFs consumes significant system resources and may cause lag or response delays.
• After recognition is complete, the text must be manually proofread, particularly for errors in special characters, tables, and formulas.

This allows you to reliably extract text from scanned pdf with precise control over the recognition process. It is suitable for users who need advanced OCR customization and are comfortable with more technical tools, especially on Linux systems.