Thread: ebook-viewer
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Old 02-20-2021, 05:35 PM   #2
DNSB
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Quote:
Originally Posted by golfwombel View Post
my english is not the best, but I´m shure you will understand.

If you open a book with the calibre integrated ebook-viewer, I miss any information about the actual page number you are reading.
You have looked at the settings for the ebook viewer? Right click, select preferences and look at the Header/Footer settings. And note that these are percentages or screen numbers not "page numbers".

Quote:
Originally Posted by golfwombel View Post
In older versions of calibre, there has been at least an information with % of readed pages. For a short time there are information about the chapters and you can start reading any opional chapter, but there is no more information about the number of pages.

Even my about 10 years old ebook-reader tolino shine gives me the number of page where I´m reading in the moment. I get the information, how many pages are left until the end of the actual chapter. And the reader adjust the information about the numer of pages according to the font size.
That information is still available. However many users preferred to see a simple pane with the book so you have to enable the page number options, clock, etc.

Which gives you page numbers that only useful if you maintain the same font, font size, margins, line height, paragraph spacings, window size, etc.

Quote:
Originally Posted by golfwombel View Post
I´m no sofeware engineer but I think this must be a solvable problem. You normally have all needed information: number of pages of the original book, font size and the adjustments of the ebook-viewer.

I think this would be helpful, to find out where to look if someboby says i.e. "have a look to page 235" . It is much easier than "have a look somewhere in the third part of the chapter 17".
Page 235 is pretty much useless when someone using another reading program, reading device, etc. is going to see different page numbers. Heck, even dead tree books will vary in the numbers of pages between different editions, different book size (hard cover, trade paperback, standard paperback, etc.). Page numbers and a reflowable format are pretty much contraditory.

The only consistent page numbering scheme I know of for epubs are including an Adobe page-map or an epub pagelist which tie to a specific pbook's page numbering. The other option is Adobe's synthetic page numbering which is not dependent on font size, screen size, etc. It does have the limit that it only works when you have the identical epub file.

And it is much easier to search for "the MDT task sequence takes additional instructions from the MDT rules" rather than trying to use page numbers.

See attached images for ebook-viewer and ebook-viewer preferences. Note that the time to read needs a certain amount of page flips before usable information can be calculated.
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