How to change margins when converting to Epub

[morlaine]

I have an eBookwise reader. I have been successfully converting ebooks to the Epub format and then converting them to the IMP format using the D D Bulk Convert software. And I have been able to read them on the eBookwise. I've been doing this for a few years.

Recently, I have encountered a number of books that seem to go through the entire conversion process with no problems, however when I put them on the eBookwise and open them, the pages are too wide and too long. I lose 3 or 4 words off each line and 2 or 3 lines off the bottom of the page. If I open these books in Calibre, they look fine. It's only when I open them in the Ebookwise that the problems appear.

I have tried so many different settings in Calibre that I can't even remember them all. And that's why I'm here. I have run out of ideas, and setting variations, and hope you can help me with this problem.

Any suggestions would be greatly appreciated. Thank you so much.

[theducks]

EPUB text flows
therefore... You don't have text if it is too big for the page.
It is a (scanned?) Image of text

Set your device Output Profile (Preferences: Common Options: page Setup) for a device that has a similar screen size (pixels) . eBookwise is no a listed profile, therefor you will need to choose something similar. the description for each device will show on the right

Future conversions will scale the images to fit.
the Preferences only sets the Defaults for new books. You can use a similar option on the conversion screen or use the Reset settings button to retrieve the current Defaults. Every book remembers the settings that were used during that conversion

[morlaine]

I'm really partial to your middle duck having 3 similar ones myself. :-)

Here is the progress, or lack thereof, that I'm making with this problem.
I did some research and found the pixel size for the ebookwise is 320x480.
However, none of the conversion selections were that size or even close.

With all the books I've converted before these recent ones, I've used the Generic options for both input and output and the books have been perfectly readable.

I don't know how epub formats are created, evidently with various processes. However, I do understand what you mean about a scanned text. I'm assuming that would be similar to a copy of a page made on a copier. But I would think it would be possible to shrink that down a bit but maybe not.

So here's what I did since I received your response. I used the Generic input option and then made 35 copies of the same book because there are 35 output options. I then selected a different output option for each of those books. All 35 of them look identically the same when I try to read it on the ebookwise. The lines overflow and does the page.

Do you think I should go back and do the same for the input formats. I would dread the thought that I would have to make 35 copies for each of the input file options. Is there a way to find out what input format the epub file has so I don't have to make all those files?

Is there free software I could use to edit the margins on the input epub file?

I'm trying to cover all possibilities. :-) Thanks so much for your help.