K2PDFOPT VS ScanTailor

Maybe try converting the PDF with K2pdfopt - you can find it here https://willus.com/k2pdfopt/ . Forgive its looks, it’s extremely good for this kind of thing. Once the pdf is nicely formatted, you can put it into calibre and convert it to a mobi there, just make sure to customise the conversion in calibre to not add any extra margins by going to page setup and changing the margins to -1, this tells calibre to... Source: about 1 year ago

Ecasound: http://nosignal.fi/ecasound/ Mixer4 (closed source, though): http://www.acousticrefuge.com/mixer4.htm Edbrowse: http://edbrowse.org/ K2pdfopt: https://willus.com/k2pdfopt/. - Source: Hacker News / about 3 years ago

There's also https://scantailor.org/ (and a maintained fork at https://github.com/4lex4/scantailor-advanced ) which semi-automates unwarping and other corrective tasks in scanned books. - Source: Hacker News / about 1 year ago

Scantailor (https://scantailor.org) is the tool for self-scanned books that exist in images (png, jpg, etc). However, I usually use Irfanview with PDF plugin (https://irfanview.com - download both Irfanview and the Plugins from this home page) I have elsewhere in r/PDF shown how you can do batch splitting of two-page scans, clean up muddy pages (yellowed or browned) . In the Reddit search box, search for... Source: about 1 year ago

Scantailor https://scantailor.org/ might be useful. Source: about 1 year ago

Scantailor is a good open source option that has a lot of features centered towards this process. Source: over 1 year ago

I use OCRmyPDF on a regular basis to OCR journal articles my library sends me. I've found it works great on English but (with appropriate language packs installed) works poorly on Greek and Hebrew. It also makes no effort to understand the layout of pages (e.g., tables). The project is fantastic, though. I've often considered building a web frontend that cleans up PDFs and then OCRs them using OCRmyPDF. For... - Source: Hacker News / almost 2 years ago