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POHow to get rid of Helvetica in iText XMLWorker?
 

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  1. POHow to get rid of Helvetica in iText XMLWorker?
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    <p>We're using iText to generate PDF files from Java code, which works pretty well in most cases. A few days ago we started to generate PDF/A instead of normal PDF files which needs to embed all fonts. The iText <code>Document</code> is mostly build of custom <code>PdfPTable</code> and other classes where we control the fonts directly. All used fonts are created from TTF files loaded via the following code - which works just fine:</p> <pre><code> private BaseFont load(String path) { try { URL fontResource = PrintSettings.class.getResource(path); if (fontResource == null) { return null; } String fontPath = fontResource.toExternalForm(); BaseFont baseFont = BaseFont.createFont(fontPath, BaseFont.IDENTITY_H, BaseFont.EMBEDDED); baseFont.setSubset(true); return baseFont; } catch (DocumentException ex) { Logger.getLogger(PrintSettings.class).warn("..."); } catch (IOException ex) { Logger.getLogger(PrintSettings.class).warn("..."); } return FontFactory.getFont(PrintSettings.FONT, "UTF-8", true, 8f, Font.NORMAL, PrintSettings.COLOR_TEXT).getBaseFont(); } </code></pre> <p>Now we use one specific content type in the PDF which generates from HTML code. We use the <code>XMLWorker</code>to handle that part. This worked just fine, as long as we didn't embed the fonts. But with PDF/A we <strong>need</strong> to embed all fonts and now we struggle with an unknown source of <strong>Helvetica</strong> usage.</p> <p>We've tried to solve this by using our own <strong>FontProvider</strong> class like this one:</p> <pre><code>public class PrintFontProvider extends FontFactoryImp { @Override public Font getFont(String fontName, String encoding, boolean embedded, float size, int style, BaseColor color, boolean cached) { // LiberationSans – http://de.wikipedia.org/wiki/Liberation_(Schriftart) – http://scripts.sil.org/cms/scripts/page.php?item_id=OFL_web if (style == Font.NORMAL) return new Font(this.load("fonts/Liberation/LiberationSans-Regular.ttf"), size, Font.NORMAL, color); if (style == Font.BOLD) return new Font(this.load("fonts/Liberation/LiberationSans-Bold.ttf"), size, Font.NORMAL, color); if (style == Font.BOLDITALIC) return new Font(this.load("fonts/Liberation/LiberationSans-BoldItalic.ttf"), size, Font.NORMAL, color); if (style == Font.ITALIC) return new Font(this.load("fonts/Liberation/LiberationSans-Italic.ttf"), size, Font.NORMAL, color); return new Font(this.load("fonts/Liberation/LiberationSans-Regular.ttf"), size, style, color); } private BaseFont load(String path) { ... } } </code></pre> <p>It's connected with the <code>XMLWorker</code> using the following code:</p> <pre><code>HtmlPipelineContext html = new HtmlPipelineContext(null); html.setTagFactory(Tags.getHtmlTagProcessorFactory()); CSSResolver css = XMLWorkerHelper.getInstance().getDefaultCssResolver(true); // We need to control the FontProdiver! html.setCssAppliers(new CssAppliersImpl(new PrintFontProvider())); Pipeline&lt;?&gt; pipeline = new CssResolverPipeline(css, new HtmlPipeline(html, new PdfWriterPipeline(this.document, writer))); XMLWorker worker = new XMLWorker(pipeline, true); XMLParser p = new XMLParser(worker); p.parse(new ByteArrayInputStream(StringUtils.iTextHTML(string).getBytes())); </code></pre> <p>Most simple HTML elements work this way... but there are some which seem to ignore the FontProvider and keep using <strong>Helvetica</strong> which won't be embedded in the PDF/A (we don't have that font). For example <code>&lt;ol&gt;&lt;li&gt;...&lt;/li&gt;&lt;/ol&gt;</code> make use of this.</p> <pre><code>Caused by: com.itextpdf.text.pdf.PdfXConformanceException: All the fonts must be embedded. This one isn't: Helvetica at com.itextpdf.text.pdf.internal.PdfXConformanceImp.checkPDFXConformance(PdfXConformanceImp.java:225) at com.itextpdf.text.pdf.PdfWriter.addSimple(PdfWriter.java:2192) at com.itextpdf.text.pdf.PdfContentByte.setFontAndSize(PdfContentByte.java:1444) at com.itextpdf.text.pdf.PdfDocument.writeLineToContent(PdfDocument.java:1463) at com.itextpdf.text.pdf.ColumnText.go(ColumnText.java:968) at com.itextpdf.text.pdf.ColumnText.go(ColumnText.java:841) at com.itextpdf.text.pdf.ColumnText.showTextAligned(ColumnText.java:1189) at com.itextpdf.text.pdf.ColumnText.showTextAligned(ColumnText.java:1208) at com.itextpdf.text.pdf.PdfDocument.flushLines(PdfDocument.java:1193) at com.itextpdf.text.pdf.PdfDocument.newPage(PdfDocument.java:830) at com.itextpdf.text.Document.newPage(Document.java:367) </code></pre> <p>I've run out of ideas how to get rid of Helvetica for now... trying to solve this for 8+ hours now... any more ideas?</p>
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    1. COThe `<ol>` is currently our problem... `<ul>` works just fine. I've noticed that `<ul>` askes for **ZapfDingbats** but `<ol>` doesn't ask for any font at all. I suppose it uses **Helvetica** without asking... when I apply **list-style-type: disc;** it doesn't try to embed that font.
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      1. USDaniel Bleisteiner
    2. COUpdated to iText v5.3.2 und XMLWorker v1.1.6... still the same. Can't get rid of **Helvetica** für `<ol>`
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      1. POHow to get rid of Helvetica in iText XMLWorker?
      1. USDaniel Bleisteiner
    3. COEven if we embed **Helvetica** from TTF files extracted from OSX Helvetica.dfont file the exception is thrown. It simply ignores the previously embedded font.
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