I'll have a look.
Paulo
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On
> Behalf Of Lari Hotari
> Sent: Thursday, January 31, 2008 12:03 PM
> To: itext-questions@lists.sourceforge.net
> Subject: [iText-questions] contribution:
> FontReplacingPdfSmartCopy: duplicate TTF font subset merging
> and replacement (was: How to remove embedded fonts from a pdf
> document)
>
>
> This contribution is about TTF font merging and replacement,
> but it should
> help with the original font problem. It would also be
> possible to continue
> developing this code to remove embedded fonts and replace
> them with pdf
> document fonts. With this code you can remove other fonts and
> replace them
> with some TTF font.
>
> Here's (itext_font_merging_patch.zip) some additional classes to
> com.lowagie.text.pdf .
> http://www.nabble.com/file/p15203186/itext_font_merging_patch.zip
> itext_font_merging_patch.zip
> The main class is FontReplacingPdfSmartCopy (extends PdfSmartCopy).
>
> This subclass of PdfSmartCopy will replace different subsets
> of the same
> font in the resulting pdf file with one font (same font name
> or replacement
> can be also done). It needs the TrueType font files (TTF) to
> do the job.
>
> This usually reduces the final PDF file size by 40%-60%
> compared to plain
> PdfSmartCopy when several single page pdfs are merged in to
> one big pdf
> file.
>
> The original motivation was to make it possible to print very
> large pdf
> files which have been concatenated of thousands of small pdf files
> containing the same fonts. Some printers just clog when they receive
> thounsands of embedded fonts in a single print job. Maybe the
> reason is that
> the resulting Postscript files are quite huge when there's
> thousands of
> embedded fonts. Having less fonts makes it more simple to
> print-process the
> concatenated pdf. It also uses less disk space.
>
> Merging/replacement currently works only with WinAnsiEncoding
> (iso-8859-1 /
> Cp1252 / latin1)
>
> Page resources are scanned while copying and it checks for a
> dictionary
> under FONT key. Possible FONT references in the font
> dictionary are replaced
> on demand. The new font will get a new indirect reference and
> the font will
> be written to the stream in the overridden
> PdfWriter.addSharedObjectsToBody() method.
>
> This class has to be in the com.lowagie.itext.pdf package
> because it needs
> access to some package private methods.
>
> I would like to contribute this implementation to the
> community and I hope
> this gets in to the itext release as soon as possible. Bruno
> or Paulo, can
> you add this to the itext release?
>
> There's also a helper class for concatenating pdfs.
>
> PdfConcator makes it easier to concatenate multiple PDF files
> in to a single
> PDF file. It uses FontReplacingPdfSmartCopy to reduce the
> number of fonts in
> the resulting PDF file. It's also possible to replace TTF
> fonts with other
> fonts. Sample usage:
>
>
> PdfConcator pdfConcator=new PdfConcator();
> pdfConcator.setFontDir(new File("fonts")); // or
> pdfConcator.useDefaultSystemFonts();
> Map fontNameMapping = new HashMap();
> fontNameMapping.put("ComicSansMS", "Arial-Black");
> pdfConcator.setFontNameMapping(fontNameMapping);
>
> List files = new ArrayList();
> files.add("pdf1.pdf");
> files.add("pdf2.pdf");
> pdfConcator.concat(files, new File("concat.pdf"));
>
> Supports IoC/DI. Example Spring configuration xml:
>
> <beans
> xsi:schemaLocation="http://www.springframework.org/schema/beans
> http://www.springframework.org/schema/beans/spring-beans-2.0.xsd";>
> <bean id="pdfConcator" class="com.lowagie.text.pdf.PdfConcator">
> <property name="fonts">
> <bean factory-bean="fontArrayFactory"
> factory-method="getInstance"/>
> </property>
> <property name="fontNameMapping">
> <map>
> <entry key="ComicSansMS" value="ArialMT"/>
> </map>
> </property>
> </bean>
> <bean id="fontArrayFactory"
> class="com.lowagie.text.pdf.BaseFontArrayFactory">
> <property name="fontDirs">
> <list>
> <value>C:/myfonts</value>
> <value>fonts</value>
> <value>/usr/share/fonts/truetype/msttcorefonts</value>
> <value>C:/WINDOWS/FONTS</value>
> </list>
> </property>
> <property name="extensions" value="ttf,otf"/>
> <property name="ignoreUnreadable" value="true"/>
> </bean>
> </beans>
>
>
> Regards,
>
> Lari Hotari
>
>
>
> Bruno Lowagie (iText) wrote:
> >
> > new2pdf wrote:
> >> Is there a better way of doing this?
> >
> > That's not a question I can answer in only a few lines.
> > Due to lack of time, I have to pass on this question for now.
> > Maybe somebody else can explain how to remove fonts
> > (although that's always a very delicate matter).
> > br,
> > Bruno
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