pdfbox

问题 I have some pdf files, Using pdfbox i have converted them into text and stored into text files, Now from the text files i want to remove Hyperlinks All special characters Blank lines headers footers of pdf files “1)”,“2)”, “a)”, “bullets”, etc. I want to get valid text line by line like this: We propose OntoGain, a method for ontology learning from multi-word concept terms extracted from plain text. OntoGain follows an ontology learning process dened by distinct processing layers. Building

问题 Is there a way to get the font of each line of a PDF file using PDFBox? I have tried this but it just lists all the fonts used in that page. It does not show what line or text is showed in that font. List<PDPage> pages = doc.getDocumentCatalog().getAllPages(); for(PDPage page:pages) { Map<String,PDFont> pageFonts=page.getResources().getFonts(); for(String key : pageFonts.keySet()) { System.out.println(key+" - "+pageFonts.get(key)); System.out.println(pageFonts.get(key).getBaseFont()); } } Any

问题 I'm trying to convert PDFs as represented by the org.apache.pdfbox.pdmodel.PDDocument class and the icafe library (https://github.com/dragon66/icafe/) to a multipage tiff with group 4 compression and 300 dpi. The sample code works for me for 288 dpi but strangely NOT for 300 dpi, the exported tiff remains just white. Has anybody an idea what the issue is here? The sample pdf which I use in the example is located here: http://www.bergophil.ch/a.pdf import java.awt.image.BufferedImage; import

问题 My mission is pretty simple: converting every single page of a pdf file into images. I tried using icepdf open source version to generate the images but they don't generate the image with the correct font. So I start using PDFBox instead. The code is the following: PDDocument document = PDDocument.load(new File("testing.pdf")); List<PDPage> pages = document.getDocumentCatalog().getAllPages(); for (int i = 0; i < pages.size(); i++) { PDPage singlePage = pages.get(i); BufferedImage buffImage =

问题 I am drawing an image on one of the PDF page.. when I use PDPageContentStream stream = new PDPageContentStream(doc, page); to draw image, everything works fine.. see below image. but when I use constructor PDPageContentStream(doc, page, true, true); to create PDPageContentStream and draw image, the newly added image gets inverted upside down.. not getting what\'s going wrong here.. PS. I am using library PdfBox-Android 回答1: Use the constructor that has a fifth parameter, so to reset the

问题 I\'m attempting to open an existing pdf file and then add another page to the pdf document from within an Android application. On the added page, I need to add some text and an image. I am wanting to give PDFBox a try. Other solutions such as iTextPDF aren\'t suitable for our company because of the licencing terms/price. I have a library project with the main code base, and also full and lite projects that reference the library project. I have downloaded the jar from http://pdfbox.apache.org

问题 I am using PDFBox for validating a pdf document . There are certain requirement to check following types of text present in a PDF Artificial Bold style text Artificial italic style text. Artificial outline style text I did search in PDFBOX api list but was unable to find such kind of api. Can anyone please help me out and tell how to determine different types of artificial font/text styles to be present in a PDF using PDFBOX. 回答1: The general procedure and a PDFBox issue In theory one should

问题 As a newbie of pdfbox 2.0.2 (https://github.com/apache/pdfbox/tree/2.0.2) user, I would like to get all the stroked lines (for instance, column and row borders of a table) of a page (PDPage), and thus I created the following class: package org.apache.pdfbox.rendering; import java.awt.geom.GeneralPath; import java.io.IOException; import java.net.MalformedURLException; import java.net.URI; import org.apache.commons.io.IOUtils; import org.apache.pdfbox.pdmodel.PDDocument; import org.apache

问题 I\'ve been using the PDFBOX version 2.0.0 in a Java project to convert pdfs to text. several of my pdfs are missing the ToUnicode method, so they come out in Gibberish while I export them. 2016-09-14 10:44:55 WARN org.apache.pdfbox.pdmodel.font.PDSimpleFont(1):322 - No Unicode mapping for 694 (30) in font MPBAAA+F1 in the WARN above, instead of the real character, a gibberish unicode (30) was presented. I was able to overcome it by editing the additional.txt file in pdfbox, since from trial &

问题 I need to parse a PDF file which contains tabular data. I\'m using PDFBox to extract the file text to parse the result (String) later. The problem is that the text extraction doesn\'t work as I expected for tabular data. For example, I have a file which contains a table like this (7 columns: the first two always have data, only one Complexity column has data, only one Financing column has data): +----------------------------------------------------------------+ | AIH | Value | Complexity |