[jira] [Updated] (PDFBOX-4594) Multiline field text with auto font siying should be size adjusted

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-4594?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tilman Hausherr updated PDFBOX-4594:
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    Summary: Multiline field text with auto font siying should be size adjusted  (was: Multiline field text poorly vertically aligned and should be size adjusted)

> Multiline field text with auto font siying should be size adjusted
> ------------------------------------------------------------------
>
>                 Key: PDFBOX-4594
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4594
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: AcroForm
>    Affects Versions: 2.0.16
>            Reporter: Tilman Hausherr
>            Priority: Major
>         Attachments: SimpleMultilineForm-ADOBE.pdf, SimpleMultilineForm.pdf
>
>
> The code to set the size of multiline sets it to 12. However Adobe does this differently. Attached: file generated by the code below, and file after adding a "d" in the field with Adobe Reader.
> The code to generate the file:
> {code:java}
> try (PDDocument document = new PDDocument())
> {
>     PDPage page = new PDPage(PDRectangle.A4);
>     document.addPage(page);
>     // Adobe Acrobat uses Helvetica as a default font and
>     // stores that under the name '/Helv' in the resources dictionary
>     PDFont font = PDType1Font.HELVETICA;
>     PDResources resources = new PDResources();
>     resources.put(COSName.getPDFName("Helv"), font);
>     // Add a new AcroForm and add that to the document
>     PDAcroForm acroForm = new PDAcroForm(document);
>     document.getDocumentCatalog().setAcroForm(acroForm);
>     // Add and set the resources and default appearance at the form level
>     acroForm.setDefaultResources(resources);
>     // Acrobat sets the font size on the form level to be
>     // auto sized as default. This is done by setting the font size to '0'
>     String defaultAppearanceString = "/Helv 0 Tf 0 g";
>     acroForm.setDefaultAppearance(defaultAppearanceString);
>     // Add a form field to the form.
>     PDTextField textBox = new PDTextField(acroForm);
>     textBox.setPartialName("SampleField");
>     // Acrobat sets the font size to 12 as default
>     // This is done by setting the font size to '12' on the
>     // field level.
>     // The text color is set to blue in this example.
>     // To use black, replace "0 0 1 rg" with "0 0 0 rg" or "0 g".
>     defaultAppearanceString = "/Helv 0 Tf 0 0 1 rg";
>     textBox.setDefaultAppearance(defaultAppearanceString);
>     textBox.setMultiline(true);
>     // add the field to the acroform
>     acroForm.getFields().add(textBox);
>     // Specify the widget annotation associated with the field
>     PDAnnotationWidget widget = textBox.getWidgets().get(0);
>     PDRectangle rect = new PDRectangle(50, 750, 200, 15);
>     widget.setRectangle(rect);
>     widget.setPage(page);
>     // set green border and yellow background
>     // if you prefer defaults, just delete this code block
>     PDAppearanceCharacteristicsDictionary fieldAppearance
>             = new PDAppearanceCharacteristicsDictionary(new COSDictionary());
>     fieldAppearance.setBorderColour(new PDColor(new float[]{0,1,0}, PDDeviceRGB.INSTANCE));
>     fieldAppearance.setBackground(new PDColor(new float[]{1,1,0}, PDDeviceRGB.INSTANCE));
>     widget.setAppearanceCharacteristics(fieldAppearance);
>     // make sure the widget annotation is visible on screen and paper
>     widget.setPrinted(true);
>     // Add the widget annotation to the page
>     page.getAnnotations().add(widget);
>     // set the field value
>     textBox.setValue("Sample field");
>     document.save("target/SimpleMultilineForm.pdf");
> }{code}



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