I have a 300-page scanned textbook for class that is just flat images, and the basic tools I tried kept failing. What do you use to convert scanned book pages into fully searchable PDFs?
For 300 pages, I’d ask the campus library or accessibility office to run OCR, since they usually have equipment that keeps the original page layout. If you need to do it yourself, split the scan into 25 to 50-page chunks and try opening each through Google Drive/Docs. Large files tend to fail all at once, which I learned the hard way.