pdfbox

PDFBox for processing pdf in android

由 筅森魡賤 提交于 2019-12-10 10:45:24
问题 i am trying to use pdfbox lib into my android app but im getting java.lang.NoClassDefFoundError: org.pdfbox.pdmodel.PDDocument this error .as i'm developing commercial app i can not use other Lib like itext .So my question is can we use PDfBox in android. here is my code:- PDFParser parser = null; String parsedText = null; PDFTextStripper pdfStripper; PDDocument pdDoc = null; COSDocument cosDoc = null; PDDocumentInformation pdDocInfo; try { f =new File(Environment.getExternalStorageDirectory(

PDFBox bloated PDF file size

由 主宰稳场 提交于 2019-12-10 10:35:59
问题 Using PDFBox can read Dynamic PDF created by livecycle. The code below reads then writes back the xml file that used to create the dynamic PDF. I bit concerned as the resulting file is quite large start out with 647kb pdf. The new pdf 14000kb. Anybody know how can reduce the size of the new file produced. Can set some type of compression when writing back to pdf file? PDDocument doc = PDDocument.load("filename"); doc.setAllSecurityToBeRemoved(true); PDDocumentCatalog docCatalog = doc

How to recognize PDF watermark and remove it using PDFBox

由 ≡放荡痞女 提交于 2019-12-10 10:08:59
问题 I'm trying to extract text except watermark text from PDF files with Apache PDFBox library,so I want to remove the watermark first and the rest is what I want.but unfortunately,Both PDmetadata and PDXObject can't recognize the watermark,any help will be appreciated.I found some code below. // Open PDF document PDDocument document = null; try { document = PDDocument.load(PATH_TO_YOUR_DOCUMENT); } catch (IOException e) { e.printStackTrace(); } // Get all pages and loop through them List pages =

Adding page numbers using PDFBox

由 拥有回忆 提交于 2019-12-10 03:07:08
问题 How can I add page number to a page in a document generated using PDFBox? Can anybody tell me how to add page numbers to a document after I merge different PDFs? I am using the PDFBox library in Java. This is my code and it works well but I need to add page number. PDFMergerUtility ut = new PDFMergerUtility(); ut.addSource("c:\\pdf1.pdf"); ut.addSource("c:\\pdf2.pdf"); ut.addSource("c:\\pdf3.pdf"); ut.mergeDocuments(); 回答1: You may want to look at the PDFBox sample AddMessageToEachPage.java.

Drawing vector images on PDF with PDFBox

由 会有一股神秘感。 提交于 2019-12-10 03:06:09
问题 I would like to draw a vector image on a PDF with Apache PDFBox. This is the code I use to draw regular images PDPage page = (PDPage) document.getDocumentCatalog().getAllPages().get(1); PDPageContentStream contentStream = new PDPageContentStream(document, page, true, true); BufferedImage _prevImage = ImageIO.read(new FileInputStream("path/to/image.png")); PDPixelMap prevImage = new PDPixelMap(document, _prevImage); contentStream.drawXObject(prevImage, prevX, prevY, imageWidth, imageHeight);

How To read control characters in a pdf using java

由 ≡放荡痞女 提交于 2019-12-10 00:21:42
问题 I'm using PDFBox to read PDF files. But some characters are not printing well and printing like control characters. Some one help to read the values from the control characters. I've attached the image Kindly have a look at that image Sample PDF: Screenshot: Sample Code class PDFManager { private PDFParser parser; private PDFTextStripper pdfStripper; private PDDocument pdDoc ; private COSDocument cosDoc ; private String Text ; private String filePath; private File file; public PDFManager() {

Read pdf uploadstream one page at a time with java

由 风流意气都作罢 提交于 2019-12-10 00:12:36
问题 I am trying to read a pdf document in a j2ee application. For a webapplication I have to store pdf documents on disk. To make searching easy I want to make a reverse index of the text inside the document; if it is OCR. With the PDFbox library its possible to create a pdfDocument object wich contains an entire pdf file. However to preserve memory and improve overall performance I'd rather handle the document as a stream and read one page at a time into a buffer. I wonder if it is possible to

Open Source libraries for PDF to image conversion [duplicate]

由 谁说我不能喝 提交于 2019-12-09 06:55:27
This question already has answers here : Closed 7 years ago . Possible Duplicate: Export PDF pages to a series of images in Java Please suggest some good java libraries which can be used for a PDF file to image conversion. I tried using PDFBox: http://pdfbox.apache.org/ but after conversion to image most of my text from the pdf file was garbled in the image. It read a 'T' as a 'Y' a 'C' as a '#' and so on. Following is the code snippet I used for the same: PDDocument document = null; document = PDDocument.load( pdfFile ); List pages = document.getDocumentCatalog().getAllPages(); for( int i

Draw transparent lines with PDFBox

由 走远了吗. 提交于 2019-12-09 03:24:46
问题 I would like to draw lines and polygons with transparent lines in PDFBox. Here is some sample code of how I am drawing a blue line, but I cannot figure out to change the alpha value of the color. PDDocument document = new PDDocument(); PDPage page = new PDPage(); document.addPage(page); PDPageContentStream contentStream = new PDPageContentStream(document, page); contentStream.setStrokingColor(66, 177, 230); contentStream.drawLine(100, 100, 200, 200); 回答1: You cannot use the alpha value of the

PDFBox - getting words locations (and not only characters')

由 谁都会走 提交于 2019-12-08 20:18:11
问题 Is it possible to get the locations of words using PDFBox, similar to "processTextPosition"? It seems that processTextPosition is called on single characters only, and the code that merges them into words is part of PDFTextStripper (in the "normalize") method, which does return the location of the text. Is there a method / utility that extracts the location as well? (For those wondering what the motivation is - the information is actually a table, and we would like to detect empty cells)
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