pdfbox

I want to insert invisible text into an existing PDF file, to make it searchable. What library should I use? I would appreciate links to specific API methods to use. Free, ideally open source. Thanks a lot! (For the curious: I want to automatically OCR incoming scanned papers and make them searcheable, in an Alfresco repository) 3 options. Text render mode 3: "No stroke, no fill". myPdfContentByte.setTextRenderMode(PdfContentByte.TEXT_RENDER_MODE_INVISIBLE); Draw the text behind something. You've presumably got scanned images of the pages. iText's myPdfStamper.getUnderContent(pageNum) will let

I fill (programatically) a form (AcroPdf) in a PDF document and sign the document afterwards. I start with doc.pdf, create doc_filled.pdf, using the setFields.java example of PDFBox. Then I sign doc_filled.pdf, creating doc?filled_signed.pdf, using some code, based on the signature examples and open the pdf in the Acrobat Reader. The entered Field data is visible and the signature panel tells me "There are errors in the formatting or information contained in this signature (The signature byte array is invalid)" So far, I know that: the signature code applied alone (i.e. directly creating some

I have just started working with PDFBox, extracting text and so on. One thing I am interested in is the colour of the text itself that I am extracting. However I cannot seem to find any way of getting that information. Is it possible at all to use PDFBox to get the colour information of a document and if so, how would I go about doing so? Many thanks. All color informations should be stored in the class PDGraphicsState and the used color (stroking/nonstroking etc.) depends on the used text rendering mode (via pdfbox mailing list) . Here is a small sample I tried: After creating a pdf with just

Could someone give me an example of how to extract coordinates for a 'word' with PDFBox I am using this link to extract positions of individual characters: https://www.tutorialkart.com/pdfbox/how-to-extract-coordinates-or-position-of-characters-in-pdf/ I am using this link to extract words: https://www.tutorialkart.com/pdfbox/extract-words-from-pdf-document/ I am stuck getting coordinates for whole words. You can extract the coordinates of words by collecting all the TextPosition objects building a word and combining their bounding boxes. Implementing this along the lines of the two tutorials

For a side project I started using PDFBox to convert pdf file to image. This is the pdf file I am using to convert to image file https://bitcoin.org/bitcoin.pdf . This is the code I am using. It is very simple code which calls PDFToImage. But the output jpg image file looks really bad with lot of commas inserted and some overlapping text. String [] args_2 = new String[7]; String pdfPath = "C:\\bitcoin.pdf"; args_2[0] = "-startPage"; args_2[1] = "1"; args_2[2] = "-endPage"; args_2[3] = "1"; args_2[4] = "-outputPrefix"; args_2[5] = "my_image_2"; //args_2[6] = "-resolution"; //args_2[7] = "1000";

I am trying to add a Header to an existing PDF file. It works but the table header in the existing PDF are messed up by the change in the font. If I remove setting the font then the header doesn't show up. Here is my code: // the document PDDocument doc = null; try { doc = PDDocument.load( file ); List allPages = doc.getDocumentCatalog().getAllPages(); //PDFont font = PDType1Font.HELVETICA_BOLD; for( int i=0; i<allPages.size(); i++ ) { PDPage page = (PDPage)allPages.get( i ); PDRectangle pageSize = page.findMediaBox(); PDPageContentStream contentStream = new PDPageContentStream(doc, page, true

I am using Pdfbox to search a word(or String) from a pdf file and I also want to know the coordinates of that word. For example :- in a pdf file there is a string like "${abc}". I want to know the coordinates of this string. I Tried some couple of examples but didn't get the result according to me. in result it is displaying the coordinates of character. Here is the Code @Override protected void writeString(String string, List<TextPosition> textPositions) throws IOException { for(TextPosition text : textPositions) { System.out.println( "String[" + text.getXDirAdj() + "," + text.getYDirAdj() +

i'm trying to extract text with coordinates from a pdf file using PDFBox. I mixed some methods/info found on internet (stackoverflow too), but the problem i have the coordinates doesnt'seems to be right. When i try to use coordinates for drawing a rectangle on top of tex, for example, the rect is painted elsewhere. This is my code (please don't judge the style, was written very fast just to test) TextLine.java import java.util.List; import org.apache.pdfbox.text.TextPosition; /** * * @author samue */ public class TextLine { public List<TextPosition> textPositions = null; public String text = "