> 1) OCR'ing of a PDF is difficult. The only good service is Google

OCRspace is OK, too, and easier to use. You can just send the PDF. It is free for PDFs with 3 or less pages.

> 2) People want searchable OCR'd PDFs where you can highlight the text, even when it's a bitmap underneath.

OCRspace can also create searchable PDFs: https://ocr.space/searchablepdf