So here is my problem :
I'm currently working on an java application that will archive document in a PDF/A-1. I'm using PdfBox for pdf generation and when I can't generate a valid PDF/A-1 pdf, because of the font. The font is embedded inside the pdf file but this website : https://www.pdf-online.com/osa/validate.aspx tell me that this is not a valid PDF/A because of :
The key Encoding has a value Identity-H which is prohibited.
I look on internet on what is this Identity-H encoding and it seem that it's the way that font are encoded, like the ansi encoding.
I've already tried to get different font like Helvetica or arial unicode Ms but nothing work, there is alway this Identity-H encoding.I'm a bit lost with all this mess in encoding so if someone can explain me it'll be great. Also here is the code I write to embedded a font in the pdf :
// load the font as this needs to be embedded
PDFont font = PDType0Font.load(doc, getClass().getClassLoader().getResourceAsStream(fontfile), true);
if (!font.isEmbedded())
{
throw new IllegalStateException("PDF/A compliance requires that all fonts used for"
+ " text rendering in rendering modes other than rendering mode 3 are embedded.");
}
Thanks for your help :)
Problem solved :
I used the example of apache : CreatePDFA ( I have no clue why that work and not my code ) : Example in examples/src/main/java/org/apache/pdfbox/examples
I add to fit the PDF/A-3 requirement :
doc.getDocumentCatalog().setLanguage("en-US");
PDMarkInfo mark = new PDMarkInfo(); // new PDMarkInfo(page.getCOSObject());
PDStructureTreeRoot treeRoot = new PDStructureTreeRoot();
doc.getDocumentCatalog().setMarkInfo(mark);
doc.getDocumentCatalog().setStructureTreeRoot(treeRoot);
doc.getDocumentCatalog().getMarkInfo().setMarked(true);
PDDocumentInformation info = doc.getDocumentInformation();
info.setCreationDate(date);
info.setModificationDate(date);
info.setAuthor("KairosPDF");
info.setProducer("KairosPDF");
info.setCreator("KairosPDF");
info.setTitle("Generated PDf");
info.setSubject("PDF/A3-A");
Here is my code to embedded a file to the pdf :
private final PDDocument doc = new PDDocument();
private final PDEmbeddedFilesNameTreeNode efTree = new PDEmbeddedFilesNameTreeNode();
private final PDDocumentNameDictionary names = new PDDocumentNameDictionary(doc.getDocumentCatalog());
private final Map<String, PDComplexFileSpecification> efMap = new HashMap<>();
public void addFile(PDDocument doc, File child) throws IOException {
File file = new File(child.getPath());
Calendar date = Calendar.getInstance();
//first create the file specification, which holds the embedded file
PDComplexFileSpecification fs = new PDComplexFileSpecification();
fs.setFileUnicode(child.getName());
fs.setFile(child.getName());
InputStream is = new FileInputStream(file);
PDEmbeddedFile ef = new PDEmbeddedFile(doc, is);
//Setting
ef.setSubtype("application/octet-stream");
ef.setSize((int) file.length() + 1);
ef.setCreationDate(date);
ef.setModDate(date);
COSDictionary dictionary = fs.getCOSObject();
dictionary.setItem(COSName.getPDFName("AFRelationship"), COSName.getPDFName("Data"));
fs.setEmbeddedFile(ef);
efMap.put(child.getName(), fs);
efTree.setNames(efMap);
names.setEmbeddedFiles(efTree);
doc.getDocumentCatalog().setNames(names);
is.close();
}
The only problem left is this error from the validation :
File specification 'Test.txt' not associated with an object.
Hope it'll help some.
Related
I use iText to convert HTML to PDF. In general, everything works as it should, but there is a problem with some font families. After the conversion, the height positioning of fonts in a PDF document does not match what it was in HTML. An example in the picture below (on the left is the generated PDF, on the right is a preview of the PDF document):
In the image:
(1) - the font Arial - with it all right.
(2) - the font Times New Roman - in PDF it rose to 2px.
(3) - the Dancing Script font - in PDF it dropped to 5px.
(4) - the Tangerine font - it’s all right.
(5) - the Charmonman font - in PDF it dropped to 5px.
For HTML template, which is generated in PDF specified CSS styles exactly the same as used to preview PDF document.
PDF is generated as follows:
private byte[] getPdf(StringBuilder fileText) throws IOException {
FontProvider fontProvider = new FontProvider(addCertificateFonts(), "");
fontProvider.addStandardPdfFonts();
ConverterProperties properties = new ConverterProperties().setFontProvider(fontProvider);
properties.setBaseUri(getBaseProjectUri());
try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
HtmlConverter.convertToPdf(fileText.toString(), out, properties);
return out.toByteArray();
}
}
private FontSet addCertificateFonts() {
FontSet set = new FontSet();
List<String> fontPaths = //здесь список путей к файлам шрифтов
ExternalContext context = FacesContext.getCurrentInstance().getExternalContext();
for (String path : fontPaths) {
set.addFont(context.getRealPath(path));
}
return set;
}
Is there any way to fix the font positioning?
Is it possible that the fonts themselves have some configurations that may affect the position of the text with this font?
I need to copy whole AcroForm including field positions and values from template PDF to a new blank PDF file. How can I do that?
In short words - I need to get rid of "background" from the template and leave only filed forms.
The whole point of this is to create a PDF with content that would be printed on pre-printed templates.
I am using IText 5 but I can switch to 7 if usefull examples would be provided
After a lot of trial and error I have found the solution to "How to copy AcfroForm fields into another PDF". It is a iText v7 version. I hope it will help somebody someday.
private byte[] copyFormElements(byte[] sourceTemplate) throws IOException {
PdfReader completeReader = new PdfReader(new ByteArrayInputStream(sourceTemplate));
PdfDocument completeDoc = new PdfDocument(completeReader);
ByteArrayOutputStream out = new ByteArrayOutputStream();
PdfWriter offsetWriter = new PdfWriter(out);
PdfDocument offsetDoc = new PdfDocument(offsetWriter);
offsetDoc.initializeOutlines();
PdfPage blank = offsetDoc.addNewPage();
PdfAcroForm originalForm = PdfAcroForm.getAcroForm(completeDoc, false);
// originalForm.getPdfObject().copyTo(offsetDoc,false);
PdfAcroForm offsetForm = PdfAcroForm.getAcroForm(offsetDoc, true);
for (String name : originalForm.getFormFields().keySet()) {
PdfFormField field = originalForm.getField(name);
PdfDictionary copied = field.getPdfObject().copyTo(offsetDoc, false);
PdfFormField copiedField = PdfFormField.makeFormField(copied, offsetDoc);
offsetForm.addField(copiedField, blank);
}
offsetDoc.close();
completeDoc.close();
return out.toByteArray();
}
Did you check the PdfCopyForms object:
Allows you to add one (or more) existing PDF document(s) to create a new PDF and add the form of another PDF document to this new PDF.
I didn't find an example, but you could try something like this:
PdfReader reader1 = new PdfReader(src1); // a document with a form
PdfReader reader2 = new PdfReader(src2); // a document without a form
PdfCopyForms copy = new PdfCopyForms(new FileOutputStream(dest));
copy.AddDocument(reader1); // add the document without the form
copy.CopyDocumentFields(reader2); // add the fields of the document with the form
copy.close();
reader1.close();
reader2.close();
I see that the class is deprecated. I'm not sure of that's because iText 7 makes it much easier to do this, or if it's because there were technical problems with the class.
In my project, I'm stuck with necessity to parse PDF file, that contains some characters rendered by Type3 fonts. So, what I need to do is to render such characters into BufferedImage for further processing.
I'm not sure if I'm looking in correct way, but I'm trying to get PDType3CharProc for such characters:
PDType3Font font = (PDType3Font)textPosition.getFont();
PDType3CharProc charProc = font.getCharProc(textPosition.getCharacterCodes()[0]);
and the input stream of this procedure contains following data:
54 0 1 -1 50 43 d1
q
49 0 0 44 1.1 -1.1 cm
BI
/W 49
/H 44
/BPC 1
/IM true
ID
<some binary data here>
EI
Q
but unfortunately I don't have any idea how can I use this data to render character into an image using PDFBox (or any other Java libraries).
Am I looking in correct direction, and what can I do with this data?
If not, are there some other tools that can solve such problem?
Unfortunately PDFBox out-of-the-box does not provide a class to render contents of arbitrary XObjects (like the type 3 font char procs), at least as far as I can see.
But it does provide a class for rendering complete PDF pages; thus, to render a given type 3 font glyph, one can simply create a page containing only that glyph and render this temporary page!
Assuming, for example, the type 3 font is defined on the first page of a PDDocument document and has name F1, all its char procs can be rendered like this:
PDPage page = document.getPage(0);
PDResources pageResources = page.getResources();
COSName f1Name = COSName.getPDFName("F1");
PDType3Font fontF1 = (PDType3Font) pageResources.getFont(f1Name);
Map<String, Integer> f1NameToCode = fontF1.getEncoding().getNameToCodeMap();
COSDictionary charProcsDictionary = fontF1.getCharProcs();
for (COSName key : charProcsDictionary.keySet())
{
COSStream stream = (COSStream) charProcsDictionary.getDictionaryObject(key);
PDType3CharProc charProc = new PDType3CharProc(fontF1, stream);
PDRectangle bbox = charProc.getGlyphBBox();
if (bbox == null)
bbox = charProc.getBBox();
Integer code = f1NameToCode.get(key.getName());
if (code != null)
{
PDDocument charDocument = new PDDocument();
PDPage charPage = new PDPage(bbox);
charDocument.addPage(charPage);
charPage.setResources(pageResources);
PDPageContentStream charContentStream = new PDPageContentStream(charDocument, charPage);
charContentStream.beginText();
charContentStream.setFont(fontF1, bbox.getHeight());
charContentStream.getOutput().write(String.format("<%2X> Tj\n", code).getBytes());
charContentStream.endText();
charContentStream.close();
File result = new File(RESULT_FOLDER, String.format("4700198773-%s-%s.png", key.getName(), code));
PDFRenderer renderer = new PDFRenderer(charDocument);
BufferedImage image = renderer.renderImageWithDPI(0, 96);
ImageIO.write(image, "PNG", result);
charDocument.close();
}
}
(RenderType3Character.java test method testRender4700198773)
Considering the textPosition variable in the OP's code, he quite likely attempts this from a text extraction use case. Thus, he'll have to either pre-generate the bitmaps as above and simply look them up by name or adapt the code to match the available information in his use case (e.g. he might not have the original page at hand, only the font object; in that case he cannot copy the resources of the original page but instead may create a new resources object and add the font object to it).
Unfortunately the OP did not provide a sample PDF. Thus I used one from another stack overflow question, 4700198773.pdf from extract text with custom font result non readble for my test. There obviously might remain issues with the OP's own files.
I stumbled upon the same issue and I was able to render Type3 font by modifying PDFRenderer and the underlying PageDrawer:
class Type3PDFRenderer extends PDFRenderer
{
private PDFont font;
public Type3PDFRenderer(PDDocument document, PDFont font)
{
super(document);
this.font = font;
}
#Override
protected PageDrawer createPageDrawer(PageDrawerParameters parameters) throws IOException
{
FontType3PageDrawer pd = new FontType3PageDrawer(parameters, this.font);
pd.setAnnotationFilter(super.getAnnotationsFilter());//as done in the super class
return pd;
}
}
class FontType3PageDrawer extends PageDrawer
{
private PDFont font;
public FontType3PageDrawer(PageDrawerParameters parameters, PDFont font) throws IOException
{
super(parameters);
this.font = font;
}
#Override
public PDGraphicsState getGraphicsState()
{
PDGraphicsState gs = super.getGraphicsState();
gs.getTextState().setFont(this.font);
return gs;
}
}
Simply use Type3PDFRenderer instead of PDFRendered. Of course if you have multiple fonts this needs some more modification to handle them.
Edit: tested with pdfbox 2.0.9
I am not getting any tutorial for adding a text watermark in a PDF file? Can you all please guide me, I am very new to PDFBOX.
Its not duplicate, the link in the comment didn't help me. I want to add text, not an image to the pdf.
Here is an example using PDFBox 2.0.2. This will load a PDF and write some text in the bottom right corner in a red transparent font. If it is a multiple page PDF the watermark will appear on every page. It might not be production ready, as I am not sure if there are some additional null conditions that need to be checked, but it should get you running in the right direction.
Keep in mind that this particular block of code will not modify the original PDF, but will create a new PDF using the Tmp_(filename) as the output.
private static void watermarkPDF (File fileStored) {
File tmpPDF;
PDDocument doc;
tmpPDF = new File(fileStored.getParent() + System.getProperty("file.separator") +"Tmp_"+fileStored.getName());
doc = PDDocument.load(fileStored);
for(PDPage page:doc.getPages()){
PDPageContentStream cs = new PDPageContentStream(doc, page, AppendMode.APPEND, true, true);
String ts = "Some sample text";
PDFont font = PDType1Font.HELVETICA_BOLD;
float fontSize = 14.0f;
PDResources resources = page.getResources();
PDExtendedGraphicsState r0 = new PDExtendedGraphicsState();
r0.setNonStrokingAlphaConstant(0.5f);
cs.setGraphicsStateParameters(r0);
cs.setNonStrokingColor(255,0,0);//Red
cs.beginText();
cs.setFont(font, fontSize);
cs.setTextMatrix(Matrix.getTranslateInstance(0f,0f));
cs.showText(ts);
cs.endText();
}
cs.close();
}
doc.save(tmpPDF);
}
I'd like to convert all the fonts, embedded or otherwise, of a PDF to another font using iText. I understand that line-height, kerning and a bunch of other things would be bungled up, but this I truly don't mind how ugly the output is.
I have seen how to embed fonts into existing pdfs here, but I don't know how to set ALL EXISTING text in the document to that font.
I understand that this isn't as straightforward as I make it out to be. Perhaps it would be easier just to take all the raw text from the document, and create a new document using the new font (again, layout/readability is a non-issue to me)
The example EmbedFontPostFacto.java from chapter 16 of iText in Action — 2nd Edition shows how to embed an originally not embedded font. The central method is this:
public void manipulatePdf(String src, String dest) throws IOException, DocumentException {
// the font file
RandomAccessFile raf = new RandomAccessFile(FONT, "r");
byte fontfile[] = new byte[(int)raf.length()];
raf.readFully(fontfile);
raf.close();
// create a new stream for the font file
PdfStream stream = new PdfStream(fontfile);
stream.flateCompress();
stream.put(PdfName.LENGTH1, new PdfNumber(fontfile.length));
// create a reader object
PdfReader reader = new PdfReader(RESULT1);
int n = reader.getXrefSize();
PdfObject object;
PdfDictionary font;
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(RESULT2));
PdfName fontname = new PdfName(FONTNAME);
for (int i = 0; i < n; i++) {
object = reader.getPdfObject(i);
if (object == null || !object.isDictionary())
continue;
font = (PdfDictionary)object;
if (PdfName.FONTDESCRIPTOR.equals(font.get(PdfName.TYPE))
&& fontname.equals(font.get(PdfName.FONTNAME))) {
PdfIndirectObject objref = stamper.getWriter().addToBody(stream);
font.put(PdfName.FONTFILE2, objref.getIndirectReference());
}
}
stamper.close();
reader.close();
}
This (without the fontname.equals(font.get(PdfName.FONTNAME)) test) may be a starting point for the simple cases of your task.
You'll have to do quite a lot of tests concerning encoding and add some individual translations for a more generic solution. You may want to study section 9 Text of the PDF specification ISO 32000-1 for this.