I have a few hundred ePub files that are just containers for scanned images. Each "page" is just a full-size scan from the original book's page. They have no reflowable text at all. I don't know why the creators chose to save them as ePub files, but I'd like a simple way to convert them all to PDFs.
The problem I'm having is that I don't know how to set the output page size options in Calibre so that it automatically uses the aspect ratio of the original scanned pages. Most of my test conversions result in a PDF where each page has the scanned image anchored to the upper left corner and the bottom and right areas have dead empty space (unwanted margins). I then have to open each PDF with a utility such as Wondershare or UPDF to crop the pages to the correct sizes.
The image attached at the end of this post shows a sample two-page spread from a PDF generated by the Calibre ePub->PDF conversion. The gray area is the portion I then have to crop.
Ideally, I'm looking for an option for batch conversion of all the ePubs that just uses the scanned image proportions to create the proper dimensions for each PDF page and doesn't distort the original images by forcing them into a different aspect ratio. Is there such a thing?
Thanx
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The problem I'm having is that I don't know how to set the output page size options in Calibre so that it automatically uses the aspect ratio of the original scanned pages. Most of my test conversions result in a PDF where each page has the scanned image anchored to the upper left corner and the bottom and right areas have dead empty space (unwanted margins). I then have to open each PDF with a utility such as Wondershare or UPDF to crop the pages to the correct sizes.
The image attached at the end of this post shows a sample two-page spread from a PDF generated by the Calibre ePub->PDF conversion. The gray area is the portion I then have to crop.
Ideally, I'm looking for an option for batch conversion of all the ePubs that just uses the scanned image proportions to create the proper dimensions for each PDF page and doesn't distort the original images by forcing them into a different aspect ratio. Is there such a thing?
Thanx
