calibreUserManual,Release2.55.0
ConvertPDFdocuments
PDFdocumentsareoneoftheworstformatstoconvertfrom.Theyareafixedpagesizeandtextplacementformat.
Meaning,itisverydifficulttodeterminewhereoneparagraphendsandanotherbegins. calibrewilltrytounwrap
paragraphsusingaconfigurable,LineUn-WrappingFactor. Thisisascaleusedtodeterminethelengthatwhicha
lineshouldbeunwrapped.Validvaluesareadecimalbetween0and1.Thedefaultis0.45,justunderthemedianline
length.Lowerthisvaluetoincludemoretextintheunwrapping.Increasetoincludeless.Youcanadjustthisvaluein
theconversionsettingsunderPDFInput.
Also,theyoftenhaveheadersandfootersaspartofthedocumentthatwillbecomeincludedwiththetext. Usethe
SearchandReplacepaneltoremoveheadersandfooterstomitigatethisissue. Iftheheadersandfootersarenot
removedfromthetextitcanthrowofftheparagraphunwrapping.Tolearnhowtousetheheaderandfooterremoval
options,readAllaboutusingregularexpressionsincalibre(page162).
SomelimitationsofPDFinputare:
• Complex,multi-column,andimagebaseddocumentsarenotsupported.
• Extractionofvectorimagesandtablesfromwithinthedocumentisalsonotsupported.
• SomePDFsusespecialglyphstorepresentllorfforfi,etc.Conversionofthesemayormaynotworkdepending
onjusthowtheyarerepresentedinternallyinthePDF.
• LinksandTablesofContentsarenotsupported
• PDFsthatuseembeddednon-unicodefontstorepresentnon-Englishcharacterswillresultingarbledoutputfor
thosecharacters
• SomePDFsaremadeupofphotographsofthepagewithOCRedtextbehindthem. . Insuchcasescalibreuses
theOCRedtext,whichcanbeverydifferentfromwhatyouseewhenyouviewthePDFfile
• PDFsthatareusedtodisplaycomplextext,likerighttoleftlanguagesandmathtypesettingwillnotconvert
correctly
Tore-iteratePDFisareally,reallybadformattouseasinput.IfyouabsolutelymustusePDF,thenbepreparedfor
anoutputranginganywherefromdecenttounusable,dependingontheinputPDF.
ComicBookCollections
Acomicbookcollectionisa.cbcfile. A.cbcfileisazipfilethatcontainsotherCBZ/CBRfiles.Inadditionthe.cbc
filemustcontainasimpletextfilecalledcomics.txt,encodedinUTF-8.Thecomics.txtfilemustcontainalistofthe
comicsfilesinsidethe.cbcfile,intheformfilename:title,asshownbelow:
one.cbz:Chapter One
two.cbz:Chapter Two
three.cbz:Chapter Three
The.cbcfilewillthencontain:
comics.txt
one.cbz
two.cbz
three.cbz
calibre willautomaticallyconvertthis .cbcfile intoa ebook withaTable ofContentspointingtoeachentry in
comics.txt.
1.4. EbookConversion
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calibreUserManual,Release2.55.0
EPUBadvancedformattingdemo
VariousadvancedformattingforEPUBfilesisdemonstratedinthisdemofile
27
.Thefilewascreatedfromhandcoded
HTMLusingcalibreandismeanttobeusedasatemplateforyourownEPUBcreationefforts.
ThesourceHTMLitwascreatedfromisavailabledemo.zip
28
.ThesettingsusedtocreatetheEPUBfromtheZIPfile
are:
ebook-convert demo.zip .epub -vv --authors "Kovid Goyal" --language e en --level1-toc '//
*
[@class="title"]' --disable-font-rescaling --page-breaks-before / --no-default-epub-cover
NotethatbecausethisfileexploresthepotentialofEPUB,mostoftheadvancedformattingisnotgoingtoworkon
readerslesscapablethancalibre’sbuilt-inEPUBviewer.
ConvertODTdocuments
calibrecandirectlyconvertODT(OpenDocumentText)files. Youshouldusestylestoformatyourdocumentand
minimizetheuseofdirectformatting. Wheninsertingimagesintoyourdocumentyouneedtoanchorthemtothe
paragraph,imagesanchoredtoapagewillallendupinthefrontoftheconversion.
Toenableautomaticdetectionofchapters,youneedtomarkthemwiththebuild-instylescalled‘Heading1’,‘Heading
2’,...,‘Heading6’(‘Heading1’equatestotheHTMLtag<h1>,‘Heading2’to<h2>etc).Whenyouconvertincalibre
youcanenterwhichstyleyouusedintothe‘Detectchaptersat’box.Example:
• IfyoumarkChapterswithstyle‘Heading2’,youhavetosetthe‘Detectchaptersat’boxto//h:h2
• ForanestedTOCwithSectionsmarkedwith‘Heading2’andtheChaptersmarkedwith‘Heading3’youneed
toenter//h:h2|//h:h3.OntheConvert-TOCpagesetthe‘Level1TOC’boxto//h:h2andthe‘Level
2TOC’boxto//h:h3.
Well-knowndocumentproperties(Title,Keywords,Description,Creator)arerecognizedandcalibrewillusethefirst
image(nottosmall,andwithgoodaspect-ratio)asthecoverimage.
There is s also an n advanced d property conversion mode, , which h is s activated d by setting the custom property
opf.metadata(‘YesorNo’type)toYesinyourODTdocument(File->Properties->CustomProperties). Ifthis
propertyisdetectedbycalibre,thefollowingcustompropertiesarerecognized(opf.authorsoverridesdocument
creator):
opf.titlesort
opf.authors
opf.authorsort
opf.publisher
opf.pubdate
opf.isbn
opf.language
opf.series
opf.seriesindex
Inadditiontothis,youcanspecifythepicturetouseasthecoverbynamingitopf.cover(rightclick,Picture-
>Options->Name)intheODT. Ifnopicturewiththisnameisfound, the‘smart’methodis used. . Asthecover
detectionmightresultindoublecoversincertainoutputformats,theprocesswillremovetheparagraph(onlyifthe
onlycontentisthecover!)fromthedocument.Butthisworksonlywiththenamedpicture!
Todisablecoverdetectionyoucansetthecustompropertyopf.nocover(‘YesorNo’type)toYesinadvanced
mode.
27
http://calibre-ebook.com/downloads/demos/demo.epub
28
http://calibre-ebook.com/downloads/demos/demo.zip
68
Chapter1. Sections
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calibreUserManual,Release2.55.0
ConvertingtoPDF
Thefirst,mostimportant,settingtodecideonwhenconvertingtoPDFisthepagesize.Bydefault,calibreusesapage
sizedefinedbythecurrentOutputprofile.SoifyouroutputprofileissettoKindle,calibrewillcreateaPDFwithpage
sizesuitableforviewingonthesmallkindlescreen. However,ifyouviewthisPDFfileonacomputerscreen,then
itwillappeartohavetoolargefonts. Tocreate“normal”sizedPDFs,usetheOverridepagesizeoptionunderPDF
Outputintheconversiondialog.
HeadersandFooters
YoucaninsertarbitraryheadersandfootersoneachpageofthePDFbyspecifyingheaderandfootertemplates.
TemplatesarejustsnippetsofHTMLcodethatgetrenderedintheheaderandfooterlocations. Forexample, , to
displaypagenumberscenteredatthebottomofeverypage,ingreen,usethefollowingfootertemplate:
<p style="text-align:center; color:green">Page _PAGENUM_</p>
calibrewillautomaticallyreplace_PAGENUM_withthecurrentpagenumber.Youcanevenputdifferentcontenton
evenandoddpages,forexamplethefollowingheadertemplatewillshowthetitleonoddpagesandtheauthoroneven
pages:
<p style="text-align:right"><span class="even_page">_AUTHOR_</span><span class="odd_page"><i>_TITLE_</i></span></p>
calibrewillautomaticallyreplace_TITLE_and_AUTHOR_withthetitleandauthorofthedocumentbeingconverted.
Youcanalsodisplaytextattheleftandrightedgesandchangethefontsize,asdemonstratedwiththisheadertemplate:
<div style="font-size:x-small"><p style="float:left">_TITLE_</p><p style="float:right;"><i>_AUTHOR_</i></p></div>
Thiswilldisplaythetitleattheleftandtheauthorattheright,inafontsizesmallerthanthemaintext.
Youcanalsousethecurrentsectionintemplates,asshownbelow:
<p style="text-align:right">_SECTION_</p>
_SECTION_isreplacedbywhateverthenameofthecurrentsectionis. Thesenamesaretakenfromthemetadata
TableofContentsinthedocument(thePDFOutline).Ifthedocumenthasnotableofcontentsthenitwillbereplaced
byemptytext.IfasinglePDFpagehasmultiplesections,thefirstsectiononthepagewillbeused.
Youcanevenusejavascriptinsidetheheaderandfootertemplates,forexample,thefollowingtemplatewillcause
pagenumberstostartat4insteadof1:
<id="pagenum" style="text-align:center;"></p><script>document.getElementById("pagenum").innerHTML "" (_PAGENUM_ 3)</script>
Note: Whenaddingheadersandfootersmakesureyousetthepagetopandbottommarginstolargeenoughvalues,
underthePageSetupsectionoftheconversiondialog.
PrintableTableofContents
YoucanalsoinsertaprintableTableofContentsattheendofthePDFthatliststhepagenumbersforeverysection.
ThisisveryusefulifyouintendtoprintoutthePDFtopaper.IfyouwishtousethePDFonanelectronicdevice,then
thePDFOutlineprovidesthisfunctionalityandisgeneratedbydefault.
YoucancustomizethelookofthethegeneratedTableofcontentsbyusingtheExtraCSSconversionsettingunder
theLook&Feelpartoftheconversiondialog.Thedefaultcssusedislistedbelow,simplycopyitandmakewhatever
changesyoulike.
1.4. EbookConversion
69
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calibreUserManual,Release2.55.0
.calibre-pdf-toc table width100%}
.calibre-pdf-toc table tr r td:last-of-type text-alignright }
.calibre-pdf-toc .level-0 {
font-sizelarger;
}
.calibre-pdf-toc .level-1 td:first-of-type padding-left1.4em }
.calibre-pdf-toc .level-2 td:first-of-type padding-left2.8em }
1.5 EditingE-books
calibrehasanintegratede-bookeditorthatcanbeusedtoeditbooksintheEPUBandAZW3(Kindle)formats.The
editorshowsyoutheHTMLandCSSthatisusedinternallyinsidethebookfiles,withalivepreviewthatupdatesas
youmakechanges.Italsocontainsvariousautomatedtoolstoperformcommoncleanupandfixingtasks.
YoucanusethiseditorbyrightclickingonanybookincalibreandselectingEditbook.
70
Chapter1. Sections
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calibreUserManual,Release2.55.0
Contents
• Basicworkflow(page71)
• TheFilesBrowser(page74)
– Renamingfiles(page75)
– Mergingfiles(page75)
– Changingtextfileorder(page75)
– Markingthecover(page75)
– Deletingfiles(page76)
– Exportingfiles(page76)
– Addingnewimages/fonts/etc.orcreatingnewblankfiles(page76)
– Replacingfiles(page76)
– LinkingstylesheetstoHTMLfilesefficiently(page76)
• Search&Replace(page76)
– Savedsearches(page77)
– Functionmode(page77)
• Automatedtools(page77)
– EditingtheTableofContents(page77)
– CheckingtheBook(page79)
– Addingacover(page80)
– Embeddingreferencedfonts(page80)
– Subsettingembeddedfonts(page80)
– Smarteningpunctuation(page80)
– TransformingCSSproperties(page80)
– RemovingunusedCSSrules(page81)
– FixingHTML(page81)
– Beautifyingfiles(page81)
– InsertinganinlineTableofContents(page81)
– SettingSemantics(page81)
– Filteringstyleinformation(page82)
• Checkpoints(page82)
• TheLivePreviewpanel(page84)
– SplittingHTMLfiles(page85)
• TheLiveCSSpanel(page86)
• MiscellaneousTools(page87)
– TheTableofContentsView(page87)
– Checkingthespellingofwordsinthebook(page87)
– Insertingspecialcharacters(page88)
– Thecodeinspectorview(page89)
– Checkingexternallinks(page89)
– Arrangingfilesintofoldersbytype(page89)
– Importingfilesinothere-bookformatsasEPUB(page89)
– TheReportstool(page97)
• Specialfeaturesinthecodeeditor(page98)
– Syntaxhighlighting(page98)
– Contextsensitivehelp(page98)
– Auto-complete(page98)
– Snippets(page99)
1.5.1 Basicworkflow
1.5. EditingE-books
71
C# HTML5 PDF Viewer SDK to view PDF document online in C#.NET
RasterEdge. PRODUCTS: ONLINE DEMOS: Online HTML5 Document Viewer; Online XDoc.PDF Word to PDF; Convert Excel to PDF; Convert PowerPoint to PDF; Convert Image
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calibreUserManual,Release2.55.0
Note: Avideotourofthecalibreeditorisavailablehere
29
.
WhenyoufirstopenabookwiththeEditbooktool,youwillbepresentedwithalistoffilesontheleft.Thesearethe
individualHTMLfiles,stylesheets,images,etc. thatmakeupthecontentofthebook. Simplydoubleclickonafile
tostarteditingit.Notethatifyouwanttodoanythingmoresophisticatedthanmakingafewsmalltweaks,youwill
needtoknowHTMLTutorial
30
andCSSTutorial
31
.
AsyoumakechangestotheHTMLorCSSintheeditor,thechangeswillbepreviewed,live,inthepreviewpanelto
theright.Whenyouarehappywithhowthechangesyouhavemadelook,clicktheSavebuttonoruseFile->Saveto
saveyourchangesintotheebook.
OneusefulfeatureisCheckpoints. Beforeyouembarkonsomeambitioussetofedits,youcancreateacheckpoint.
Thecheckpointwillpreservethecurrentstateofyourbook,thenifinthefutureyoudecideyoudon’tlikethechanges
youhavemadetoyoucangobacktothestatewhenyoucreatedthecheckpoint. Tocreateacheckpoint,useEdit-
>Createcheckpoint.Checkpointswillalsobeautomaticallycreatedforyouwheneveryourunanyautomatedtoollike
globalsearchandreplace. ThecheckpointingfunctionalityisinadditiontothenormalUndo/redomechanismwhen
editingindividualfiles.Checkpointsareusefulforwhenchangesarespreadovermultiplefilesinthebook.
Thatisthebasicworkflowforeditingbooks–Openafile,makechanges,previewandsave. Therestofthismanual
willdiscussthevarioustoolsandfeaturespresenttoallowyoutoperformspecifictasksefficiently.
29
http://calibre-ebook.com/demo#tutorials
30
http://html.net/tutorials/html/
31
http://html.net/tutorials/css/
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Chapter1. Sections
calibreUserManual,Release2.55.0
1.5. EditingE-books
73
calibreUserManual,Release2.55.0
1.5.2 TheFilesBrowser
74
Chapter1. Sections
calibreUserManual,Release2.55.0
TheFilesBrowsergivesyouanoverviewofthevariousfilesinsidethebookyouareediting.Thefilesarearrangedby
category,withtext(HTML)filesatthetop,followedbystylesheet(CSS)files,imagesandsoon.Simplydoubleclick
onafiletostarteditingit. EditingissupportedforHTML,CSSandimagefiles. . Theorderoftextfilesisthesame
orderthattheywouldbedisplayedin,ifyouwerereadingthebook.Allotherfilesarearrangedalphabetically.
Byhoveringyourmouseoveranentry,youcanseeitssize,andalso,atthebottomofthescreen,thefullpathtothe
fileinsidethebook. Notethatfilesinsideebooksarecompressed,sothesizeofthefinalbookisnotthesumofthe
individualfilesizes.
Manyfileshavespecialmeaning,inthebook. Thesewilltypicallyhaveaniconnexttotheirnames,indicatingthe
specialmeaning.Forexample,inthepicturetotheleft,youcanseethatthefilescover_image.jpgandtitlepage.xhtml
havetheiconofacovernexttothem, thisindicates theyarethebookcoverimageandtitlepage. . Similarly, , the
content.opffilehasametadataiconnexttoit,indicatingthebookmetadataispresentinitandthethetoc.ncxfilehas
aTiconnexttoit,indicatingitistheTableofContents.
Youcanperformmanyactionsonindividualfiles,byrightclickingthem.
Renamingfiles
YoucanrenameanindividualfilebyrightclickingitandselectingRename.Renamingafileautomaticallyupdatesall
linksandreferencestoitthroughoutthebook.Soallyouhavetodoisprovidethenewname,calibrewilltakecareof
therest.
Youcanalsobulkrenamemanyfilesatonce. Thisisusefulifyouwantthefilestohavesomesimplenamepattern.
ForexampleyoumightwanttorenamealltheHTMLfilestohavenamesChapter-1.html,Chapter-2.htmlandsoon.
SelectthefilesyouwantbulkrenamedbyholdingdowntheShiftorCtrlkeyandclickingthefiles. Thenrightclick
andselectBulkrename.Enteraprefixandwhatnumberyouwouldliketheautomaticnumberingtostartat,clickOK
andyouaredone.
Mergingfiles
Sometimes,youmaywanttomergetwoHTMLfilesortwoCSSfilestogether. Itcansometimesbeusefultohave
everythinginasinglefile.Bewary,though,puttingalotofcontentintoasinglefilewillcauseperformanceproblems
whenviewingthebookinatypicalebookreader.
Tomergemultiplefilestogether,selectthembyholdingtheCtrlkeyandclickingonthem(makesureyouonlyselect
filesofonetype,eitherallHTMLfilesorallCSSfilesandsoon). Thenrightclickandselectmerge. That’sall,
calibrewillmergethefiles,automaticallytakingcareofmigratingalllinksandreferencestothemergedfiles. Note
thatmergingfilescansometimescausetextstylingtochange, sincetheindividualfilescouldhaveuseddifferent
stylesheets.
Changingtextfileorder
Youcanre-arrangetheorderinwhichtext(HTML)filesareopenedwhenreadingthebookbysimplydraggingand
droppingthemintheFilesbrowser. Forthetechnicallyinclined,thisiscalledre-orderingthebookspine. Notethat
youhavetodroptheitemsbetweenotheritems,notontopofthem,thiscanbealittlefiddlyuntilyougetusedtoit.
Markingthecover
E-bookstypicallyhaveacoverimage.ThisimageisindicatedintheFilesBrowserbytheiconofabrownbooknext
totheimagename.Ifyouwanttodesignatesomeotherimageasthecover,youcandosobyrightclickingonthefile
andchoosingMarkascover.
1.5. EditingE-books
75
calibreUserManual,Release2.55.0
Inaddition,EPUBfileshastheconceptofatitlepage.AtitlepageisaHTMLfilethatactsasthetitlepage/coverfor
thebook.YoucanmarkanHTMLfileasthetitlepagewheneditingEPUBsbyright-clicking.Becarefulthatthefile
youmarkcontainsonlythecoverinformation. Ifitcontainsothercontent,suchasthefirstchapter,thenthatcontent
willbelostiftheusereverconvertstheEPUBfileincalibretoanotherformat. Thisisbecausewhenconverting,
calibreassumesthatthemarkedtitlepagecontainsonlythecoverandnoothercontent.
Deletingfiles
YoucandeletefilesbyeitherrightclickingonthemorbyselectingthemandpressingtheDeletekey.Deletingafile
removesallreferencestothefilefromtheOPFfile,savingyouthatchore.However,referencesinotherplacesarenot
removed,youcanusetheCheckBooktooltoeasilyfindandremove/replacethem.
Exportingfiles
Youcanexportafilefrominsidethebooktosomewhereelseonyourcomputer.Thisisusefulifyouwanttoworkon
thefileinisolation,withspecialisedtools.Todothis,simplyrightclickonthefileandchooseExport.
Onceyouaredoneworkingontheexportedfile,youcanre-importitintothebook,byrightclickingonthefileagain
andchoosingReplacewithfile...whichwillallowyoutoreplacethefileinthebookwiththepreviouslyexportedfile.
Addingnewimages/fonts/etc.orcreatingnewblankfiles
Youcanaddanewimage,font,stylesheet,etc. fromyourcomputerintothebookbyclickingFile->Newfile. This
letsyoueitherimportafilebyclickingtheImportresourcefilebuttonorcreateanewblankhtmlfileorstylesheetby
simplyenteringthefilenameintotheboxforthenewfile.
YoucanalsoimportmultiplefilesintothebookatonceusingFile->Importfilesintobook.
Replacingfiles
Youcaneasilyreplaceexistingfilesinthebook,byrightclickingonthefileandchoosingreplace.Thiswillautomat-
icallyupdatealllinksandreferences,incasethereplacementfilehasadifferentnamethanthefilebeingreplaced.
LinkingstylesheetstoHTMLfilesefficiently
Asaconvenience,youcanselectmultipleHTMLfilesintheFilesBrowser,rightclickandchooseLinkstylesheetsto
havecalibreautomaticallyinsertthe<link>tagsforthosestylesheetsintoalltheselectedHTMLfiles.
1.5.3 Search&Replace
EditBookhasaverypowerfulsearchandreplaceinterfacethatallowsyoutosearchandreplacetextinthecurrentfile,
acrossallfilesandeveninamarkedregionofthecurrentfile.Youcansearchusinganormalsearchorusingregular
expressions.Tolearnhowtouseregularexpressionsforadvancedsearching,seeAllaboutusingregularexpressions
incalibre(page162).
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Chapter1. Sections
Documents you may be interested
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