Protect file from changes

thiagorossiit · 02-19-2016, 12:04 PM

Hi!

I am new to Calibre and I loved the program. A friend recommended it and it is really good. Congratulations on everybody that helped the project!

I am writing because I have a lot of e-books and some of them are duplicated in different formats. I saw Calibre can edit EPUB and AZW3. I did some test and edited a copy of my library and it modified the original file. I saw some options talking about ORIGINAL_EPUB but it didn't make a copy, it changed the "master" file. Maybe only converting makes this copy?

Can I protect the files from being modified like iPhoto, Picasa or Lightroom (if someone uses them)? For example, when I change the metadata it doesn't modify the EPUB or AZW3 file, but an external file. If someone accidentally edit the EPUB I hope it changes a copy or don't change anything.

Is possible? I can modify the file to be read only but I don't want to do that every time I import a file.

Thanks!

theducks · 02-19-2016, 01:42 PM

Quote:

Originally Posted by thiagorossiit

Hi!

I am new to Calibre and I loved the program. A friend recommended it and it is really good. Congratulations on everybody that helped the project!

I am writing because I have a lot of e-books and some of them are duplicated in different formats. I saw Calibre can edit EPUB and AZW3. I did some test and edited a copy of my library and it modified the original file. I saw some options talking about ORIGINAL_EPUB but it didn't make a copy, it changed the "master" file. Maybe only converting makes this copy?

Can I protect the files from being modified like iPhoto, Picasa or Lightroom (if someone uses them)? For example, when I change the metadata it doesn't modify the EPUB or AZW3 file, but an external file. If someone accidentally edit the EPUB I hope it changes a copy or don't change anything.

Is possible? I can modify the file to be read only but I don't want to do that every time I import a file.

Thanks!

Somebody?
You prevent changes by limiting WHO uses your login.

You can allow other members of your house read access via them content-server (I would start that using the command line)

Are you worried about changes AFTER the book leaves the Library? DRM.

eschwartz · 02-21-2016, 03:30 AM

ORIGINAL_EPUB is not a backup, it is meant only for giving you the chance to revert an automated conversion gone wrong.

No one other than you should be messing around with your files. calibre does not have any options for artificially locking books -- it assumes that anyone who can run calibre and possesses file ownership of your calibre library has the authorization to do whatever they want.

As theducks pointed out, the Content Server allows others to access the library strictly for downloading, which should fulfill your needs.

02-19-2016, 12:04 PM	#1
thiagorossiit Junior Member Posts: 1 Karma: 10 Join Date: Feb 2016 Device: Kindle Paperwhite	Protect file from changes Hi! I am new to Calibre and I loved the program. A friend recommended it and it is really good. Congratulations on everybody that helped the project! I am writing because I have a lot of e-books and some of them are duplicated in different formats. I saw Calibre can edit EPUB and AZW3. I did some test and edited a copy of my library and it modified the original file. I saw some options talking about ORIGINAL_EPUB but it didn't make a copy, it changed the "master" file. Maybe only converting makes this copy? Can I protect the files from being modified like iPhoto, Picasa or Lightroom (if someone uses them)? For example, when I change the metadata it doesn't modify the EPUB or AZW3 file, but an external file. If someone accidentally edit the EPUB I hope it changes a copy or don't change anything. Is possible? I can modify the file to be read only but I don't want to do that every time I import a file. Thanks!

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02-21-2016, 03:30 AM	#3
eschwartz Ex-Helpdesk Junkie Posts: 19,422 Karma: 85397180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	ORIGINAL_EPUB is not a backup, it is meant only for giving you the chance to revert an automated conversion gone wrong. No one other than you should be messing around with your files. calibre does not have any options for artificially locking books -- it assumes that anyone who can run calibre and possesses file ownership of your calibre library has the authorization to do whatever they want. As theducks pointed out, the Content Server allows others to access the library strictly for downloading, which should fulfill your needs.