k2pdfopt: optimizes PDFs for viewing on e-readers

[willus]

Originally Posted by gibletpie

Thanks so much for the awesome program, willus!

I'm having one small problem. I like using this with my Nook Glowlight Plus. Same resolution as the Kindle Voyager. But on the nook, it keeps a header and footer at the top and bottom. Which ends up overlapping some of the PDF text. What I want to do is fit to width, but leave space at the top and bottom to accommodate the header and footer. I've figured out I can leave space for the footer by adjusting the height in the device settings, but I can't figure out how to leave space for the header.

Is this possible?

I don't know enough about the Nook. You'll have to experiment. Between the options to set the device width and height (-w, -h) and the option to provide extra margins around the output pages (-om), you should be able to find something that works. E.g. -omt 0.1in will leave 0.1 inches margin at the top of the PDF output pages. See full list of options (if you are using the MS Windows GUI, you can put the -om... options into the "Additional options" box).

[gibletpie]

Originally Posted by willus

I don't know enough about the Nook. You'll have to experiment. Between the options to set the device width and height (-w, -h) and the option to provide extra margins around the output pages (-om), you should be able to find something that works. E.g. -omt 0.1in will leave 0.1 inches margin at the top of the PDF output pages. See full list of options (if you are using the MS Windows GUI, you can put the -om... options into the "Additional options" box).

Thanks, willus! Adding -omt 0.4in -omb 0.3in to the Additional Options is perfect for the Nook Glowlight Plus, leaving sufficient space for the header and footer.

[mahpooya]

I need different auto straightening values for each columns.
My file is a scanned copy of the book and left and right columns are tilted, but the angle of tilt are unlike other column.
How can I set different values for each columns?

[willus]

Originally Posted by mahpooya

I need different auto straightening values for each columns.
My file is a scanned copy of the book and left and right columns are tilted, but the angle of tilt are unlike other column.
How can I set different values for each columns?

You can't set different straightening values for each column, but you can first make an intermediate PDF file where you split each column onto a separate page using the -grid or -cbox options (the -cbox option along with -mode crop). If you want to post a few pages of your PDF, I can recommend some specific settings. Then on the intermediate PDF you can do an autostraighten on each page.

[mahpooya]

Originally Posted by willus

You can't set different straightening values for each column, but you can first make an intermediate PDF file where you split each column onto a separate page using the -grid or -cbox options (the -cbox option along with -mode crop). If you want to post a few pages of your PDF, I can recommend some specific settings. Then on the intermediate PDF you can do an autostraighten on each page.

Oh yeah
I get it
I try myself with that idea.

I try to convert this ugly file
http://www.toproman.ir/wp-content/up...proman.ir_.zip

Password: www.toproman.ir

[willus]

Originally Posted by mahpooya

Oh yeah
I get it
I try myself with that idea.

I try to convert this ugly file
http://www.toproman.ir/wp-content/up...proman.ir_.zip

Password: www.toproman.ir

This command works pretty well for creating the first iteration (breaking each double-wide source page into its two book pages):

k2pdfopt -grid 2x1x-5 -mode crop  DonYaye_SoPhie_toproman.ir.pdf

[willus]

This release adds some feature requests and bug fixes from the past few months, including the ability to select the font size of the converted document and the selection of an output folder in the MS Windows GUI. See all of the other new features, improvements and bug fixes at the web site.

[willus]

A couple more bug fixes. See the web site.

[agelos100]

Hello Willus,

I have a question about your excellent software, and I would also like to report a minor bug since version 2.33.

If I have a file with let me say 500 pages, and I want a few pages not to be converted (for example page numbers 10, 100, 200), is there a way to directly exclude those pages from conversion (some command -10,100,200) or I have to specify pages to convert as 1-9,11-99,101-199,201-500) ?

In some cases the former would be very convenient.

And for the bug, when the name of the input file has Greek characters the output file has some funny characters, check the attachments.
input file: Το όνομα του ρόδου.pdf
output file: Το όνομα του �όδου_k2opt.pdf

Thank you in advance
Angelos

[willus]

Originally Posted by agelos100

... is there a way to directly exclude those pages from conversion (some command -10,100,200) or I have to specify pages to convert as 1-9,11-99,101-199,201-500) ?

Yes. The -px option does exactly what you want. E.g. go to the command-line options and search for "exclude".

Originally Posted by agelos100

And for the bug, when the name of the input file has Greek characters the output file has some funny characters, check the attachments.
input file: Το όνομα του ρόδου.pdf
output file: Το όνομα του �όδου_k2opt.pdf

I was not able to duplicate this behavior under Windows 7 64-bit with the latest version (v2.34a--though v2.33 should be the same). The output file name was correct. What O/S version are you running again?

[agelos100]

I was not able to duplicate this behavior under Windows 7 64-bit with the latest version (v2.34a--though v2.33 should be the same). The output file name was correct. What O/S version are you running again?[/QUOTE]

I have Windows 8.1

I just checked -px command and it seems to me that it just deletes specified page; Is there a way to keep that page at its original size (that would be useful if the page has a picture or a map or a drawing)?

[willus]

Originally Posted by agelos100

I have Windows 8.1

I just checked -px command and it seems to me that it just deletes specified page; Is there a way to keep that page at its original size (that would be useful if the page has a picture or a map or a drawing)?

I'm not sure what to tell you about the file name mangling. Maybe it has to do with you running a Greek version of Windows (something I have not tested directly)? K2pdfopt correctly handle unicode/wide character file names in my testing. BTW, I'm running Windows 10, not Windows 7--I forgot that I upgraded a while back.

[EDIT: Never mind--I duplicated the bug. It happens when you do a native conversion (which uses a different set of functions to write the converted file). Should be easy to fix.]

There is not a simple way to do different types of conversions (e.g. no text re-flow vs. text re-flow) on different pages within the same document other than to do them with separate commands and then merge the two converted files back together with a utility like cpdf (my favorite) or pdfsam. But pictures and maps should be preserved even with text re-flow, particularly if you use the -f2p -2 option.

[agelos100]

Originally Posted by willus

I'm not sure what to tell you about the file name mangling. Maybe it has to do with you running a Greek version of Windows (something I have not tested directly)? K2pdfopt correctly handle unicode/wide character file names in my testing. BTW, I'm running Windows 10, not Windows 7--I forgot that I upgraded a while back.

[EDIT: Never mind--I duplicated the bug. It happens when you do a native conversion (which uses a different set of functions to write the converted file). Should be easy to fix.]

There is not a simple way to do different types of conversions (e.g. no text re-flow vs. text re-flow) on different pages within the same document other than to do them with separate commands and then merge the two converted files back together with a utility like cpdf (my favorite) or pdfsam. But pictures and maps should be preserved even with text re-flow, particularly if you use the -f2p -2 option.

Well, for both issues there are alternatives, that is why I didn't say anything from the very beginning.

Thanks again for your time.
Angelos

[willus]

Fixes two more MS Windows bugs, including the issue that agelos100 just reported with unicode file names. See the web site.

[drjd]

Originally Posted by willus

Fixes two more MS Windows bugs, including the issue that agelos100 just reported with unicode file names. See the web site.

Thanks, willus! Just downloaded the new version, I haven't tested yet but I know it will be great, as usual!