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Active Oldest Votes. Improve this answer. Egil Egil 3 3 bronze badges. Gautam Jha Gautam Jha 2 2 bronze badges. You can create an e-book from a builtin recipe like this: ebook-convert " Recipe Name. Specify the output profile. The output profile tells the conversion system how to optimize the created document for the specified device such as by resizing images for the device screen size.
In some cases, an output profile can be used to optimize the output for a particular device, but this is rarely necessary. Also, note that in cases where there are multiple representations of a character characters shared by Chinese and Japanese for instance the representation based on the current calibre interface language will be used.
The base font size in pts. All font sizes in the produced book will be rescaled based on this size. By choosing a larger size you can make the fonts in the output bigger and vice versa. By default, when the value is zero, the base font size is chosen based on the output profile you chose. Change text justification.
A value of " left " converts all justified text in the source to left aligned i. A value of " justify " converts all unjustified text to justified. A value of " original " the default does not change justification in the source file.
Note that only some output formats support justification. Embed every font that is referenced in the input document but not already embedded. This will search your system for the fonts, and if found, they will be embedded. Please ensure that you have the proper license for embedding the fonts used in this document. Embed the specified font family into the book. This specifies the " base " font used for the book. If the input document specifies its own fonts, they may override this base font.
You can use the filter style information option to remove fonts from the input document. By default, calibre will use the shorthand form for various CSS properties such as margin, padding, border, etc. This option will cause it to use the full expanded form instead. This CSS will be appended to the style rules from the source file, so it can be used to override those rules.
This is useful if the presence of some style information prevents it from being overridden on your device. For example: font-family,color,margin-left,margin-right. Mapping from CSS font names to font sizes in pts. An example setting is 12,12,14,16,18,20,22, These are the mappings for the sizes xx-small to xx-large, with the final size being for huge fonts.
The font rescaling algorithm uses these sizes to intelligently rescale fonts. The default is to use a mapping based on the output profile you chose. Insert a blank line between paragraphs. Set the height of the inserted blank lines in em. The height of the lines between paragraphs will be twice the value set here. Preserve ligatures present in the input document.
A ligature is a special rendering of a pair of characters like ff, fi, fl et cetera. Most readers do not have support for ligatures in their default fonts, so they are unlikely to render correctly. By default, calibre will turn a ligature into the corresponding pair of normal characters. This option will preserve them instead.
The line height in pts. Controls spacing between consecutive lines of text. Only applies to elements that do not define their own line height. In most cases, the minimum line height option is more useful. By default no line height manipulation is performed. Some badly designed documents use tables to control the layout of text on the page.
When converted these documents often have text that runs off the page and other artifacts. This option will extract the content from the tables and present it in a linear fashion.
Set the bottom margin in pts. Default is 5. Setting this to less than zero will cause no margin to be set the margin setting in the original document will be preserved. Set the left margin in pts. Set the right margin in pts. Set the top margin in pts.
The minimum line height, as a percentage of the element ' s calculated font size. Set to zero to disable. Use this setting in preference to the direct line height specification, unless you know what you are doing. For example, you can achieve " double spaced " text by setting this to Remove spacing between paragraphs. Also sets an indent on paragraphs of 1.
When calibre removes blank lines between paragraphs, it automatically sets a paragraph indent, to ensure that paragraphs can be easily distinguished. This option controls the width of that indent in em. If you set this value negative, then the indent specified in the input document is used, that is, calibre does not change the indentation.
Convert plain quotes, dashes and ellipsis to their typographically correct equivalents. Subset all embedded fonts. Every embedded font is reduced to contain only the glyphs used in this document.
This decreases the size of the font files. Useful if you are embedding a particularly large font with lots of unused glyphs. Path to a file containing rules to transform the CSS styles in this book. The easiest way to create such a file is to use the wizard for creating rules in the calibre GUI. Once you create the rules, you can use the " Export " button to save them to a file. Path to a file containing rules to transform the HTML in this book.
Modify the document text and structure using common patterns. Disabled by default. Use —enable-heuristics to enable. Analyze hyphenated words throughout the document. The document itself is used as a dictionary to determine whether hyphens should be retained or removed. Left aligned scene break markers are center aligned. Replace soft scene breaks that use multiple blank lines with horizontal rules. Detect unformatted chapter headings and sub headings. Change them to h2 and h3 tags.
This setting will not create a TOC, but can be used in conjunction with structure detection to create one. The tags are renumbered to prevent splitting in the middle of chapter headings. Scale used to determine the length at which a line should be unwrapped. Valid values are a decimal between 0 and 1. The default is 0. If only a few lines in the document require unwrapping this value should be reduced. Replace scene breaks with the specified text.
By default, the text from the input document is used. Path to a file containing search and replace regular expressions. The file must contain alternating lines of regular expression followed by replacement pattern which can be an empty line. The regular expression must be in the Python regex syntax and the file must be UTF-8 encoded.
An XPath expression to detect chapter titles. The expression used must evaluate to a list of elements. Specify how to mark detected chapters. A value of " pagebreak " will insert page breaks before chapters.
A value of " rule " will insert a line before chapters. A value of " none " will disable chapter marking and a value of " both " will use both page breaks and lines to mark chapters. Some documents specify page margins by specifying a left and right margin on each individual paragraph. Sometimes, this can cause the removal of margins that should not have been removed. In this case you can disable the removal.
Insert the book metadata at the start of the book. An XPath expression. Page breaks are inserted before the specified elements. Remove the first image from the input e-book. Useful if the input document has a cover image that is not identified as a cover. In this case, if you set a cover in calibre, the output document will end up with two cover images if you do not specify this option.
An XPath expression to detect the location in the document at which to start reading. Some e-book reading programs most prominently the Kindle use this location as the position at which to open the book. See the XPath tutorial in the calibre User Manual for further help using this feature.
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