pdfbox

问题 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

问题 Does pdfbox provide some utility to highlight the text when I have it's co-ordinates? Bounds of the text is known. I know there are other libraries that provide the same functionality like pdfclown etc. But does pdfbox provide something like that? 回答1: well i found this out. it is simple. PDDocument doc = PDDocument.load(/*path to the file*/); PDPage page = (PDPage)doc.getDocumentCatalog.getAllPages.get(i); List annots = page.getAnnotations; PDAnnotationTextMarkup markup = new

问题 I am using pdfbox library to extract text contents from pdf file.I would able to extract all the text,but couldn't find the method to extract font styles. 回答1: This is not the right way to extract font. To read font one has to iterate through pdf pages and extract font as below: PDDocument doc = PDDocument.load("C:/mydoc3.pdf"); List<PDPage> pages = doc.getDocumentCatalog().getAllPages(); for(PDPage page:pages){ Map<String,PDFont> pageFonts=page.getResources().getFonts(); } 回答2: import org

问题 Is it possible to extract the visible signature (image) of an signed PDF with the OSS library PDFBox? Workflow: list all signatures of a file show which signatures include a visible signature show which are valid extract images of signatures (need to extract correct image for each signature) Something in oop style like following would be awesome: PDFSignatures [] sigs = document.getPDFSignatures() sig[0].getCN() ... (Buffered)Image visibleSig = sig[0].getVisibleSignature() Found class

问题 I am new to PDFBox (and PDF generation) and I am having difficulty to generate my own PDF. I do have text with certain coordinates in inches/centimeters and I need to convert them to the units PDFBox uses. Any suggestions/utilities than can do this automatically? PDPageContentStream.moveTextPositionByAmount(x,y) is making no sense to me. 回答1: In general PDFBox uses the PDF user space coordinates when creating a PDF. This means: The coordinates of a page are delimited by its CropBox defaulting

问题 We are planning to migrate our pdf generation utilities from iText to PDFBox (Due to licensing issues in iText). With some effort, I was able to write and position text, draw lines etc. But creating Tables with text embedded in Table cells is a challenge, I went through the documentation, examples, Google, Stackoverflow couldn't find a thing. Was wondering if PDFBox provides native support for creating Tables with embedded text. My last resort would be to use this link https://github.com

问题 I have to make a PDF with a Table. So far it work fine, but now I want to add a wrapping feature. So I need to insert a Linefeed. contentStream.beginText(); contentStream.moveTextPositionByAmount(x, y); contentStream.drawString("Some text to insert into a table."); contentStream.endText(); I want to add a " \n " before "insert". I tried " \u000A " which is the hex value for linefeed, but Eclipse shows me an error. Is it possible to add linefeed with drawString? 回答1: The pdf format doesn't

问题 I need to extract bar-code from PDF only (using rectangle), not converting the whole PDF into image. The image format can be jpg/png. 回答1: You can use Pdfbox List pages = document.getDocumentCatalog().getAllPages(); Iterator iter = pages.iterator(); while( iter.hasNext() ) { PDPage page = (PDPage)iter.next(); PDResources resources = page.getResources(); Map images = resources.getImages(); if( images != null ) { Iterator imageIter = images.keySet().iterator(); while( imageIter.hasNext() ) {

问题 I need to extract bar-code from PDF only (using rectangle), not converting the whole PDF into image. The image format can be jpg/png. 回答1: You can use Pdfbox List pages = document.getDocumentCatalog().getAllPages(); Iterator iter = pages.iterator(); while( iter.hasNext() ) { PDPage page = (PDPage)iter.next(); PDResources resources = page.getResources(); Map images = resources.getImages(); if( images != null ) { Iterator imageIter = images.keySet().iterator(); while( imageIter.hasNext() ) {

问题 I want to convert PDF to SVG please suggest some libraries/executable that will be able to do this efficiently. I have written my own java program using the apache PDFBox and Batik libraries - PDDocument document = PDDocument.load( pdfFile ); DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation(); // Create an instance of org.w3c.dom.Document. String svgNS = "http://www.w3.org/2000/svg"; Document svgDocument = domImpl.createDocument(svgNS, "svg", null);