pdfbox

How To read control characters in a pdf using java

南笙酒味 提交于 2019-12-04 22:48:57
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() { } public String ToText() throws IOException { this.pdfStripper = null; this.pdDoc = null; this.cosDoc =

Read pdf uploadstream one page at a time with java

◇◆丶佛笑我妖孽 提交于 2019-12-04 22:41:16
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 read a filestream containing pdf page by page or even one line at a time. Steen For a given generic pdf

custom schema to XMP metadata

老子叫甜甜 提交于 2019-12-04 22:28:19
I want to write custom metadata to a pdf file which are not supported by XMP standard schemas hence I wrote my own schema containing my own properties. I can successfully write these additional custom metadata to my PDF file using either PDFBox or iTextPDF library. I am however unable to read the custom metadata at client side without parsing the XMP xml. I guess there should be some API that I am not aware of for getting your custom schema back to your java class. Please help me if I am thinking in right direction or do I actually need to parse the xml for getting my custom data back at

Text is reverse in generated pdf

点点圈 提交于 2019-12-04 21:08:53
I am using pdfbox to add a line to pdf file. but the text i am adding is reversed. File file = new File(filePath); PDDocument document = PDDocument.load(file); PDPage page = document.getPage(0); PDPageContentStream contentStream = new PDPageContentStream(document, page,PDPageContentStream.AppendMode.APPEND,true); int stampFontSize = grailsApplication.config.pdfStamp.stampFontSize ? grailsApplication.config.pdfStamp.stampFontSize : 20 contentStream.beginText(); contentStream.setFont(PDType1Font.TIMES_ROMAN, stampFontSize); int leftOffset = grailsApplication.config.pdfStamp.leftOffset ?

How do I rotate the contents of a PDF page to an arbitrary angle?

橙三吉。 提交于 2019-12-04 20:09:39
I need to rotate the contents of a PDF page by an arbitrary angle and the PDPage.setRotation(int) command is restricted to multiples of 90 degrees. The contents of the page are vector and text and I need to be able to zoom in on the contents later, which means that I cannot convert the page to an image because of the loss of resolution. mkl In comments it already has been indicated that to draw some content, e.g. an existing regular portrait or landscape page, at an arbitrary angle onto a new regular portrait or landscape page, one can use the mechanism presented in this answer . As the code

Setting “overprint=true” for a specific ColorSpace on PDF (not the entire PDF Page)

孤街浪徒 提交于 2019-12-04 18:49:48
I have a requirement to set overprint=true at ColorSpace level on a "PDF" (not for the entire PDF Page). I'm trying to solve this using PDFBox. Again, I want to apply overprint only for a specific colorSpace (see If condition in the sample code below), but graphicsState.setStrokingOverprintControl(true); seems to be setting overprint for the entire PDF Page (all colorSpaces). Here's the sample code. Anyone came across this problem? Am I missing something? Sample code: public static void fixPdfOverprint(String inputFilePath, String outputFilePath) throws IOException { final ByteArrayInputStream

PDFBox - Building the latest version for .NET using IKVM

自古美人都是妖i 提交于 2019-12-04 17:49:46
I would like to build the latest version of PDFBox ( http://pdfbox.apache.org/userguide/dot_net.html ) for use within my .NET project. I have no experience with Java whatsoever but I am using the steps defined here: http://www.ikvm.net/userguide/tutorial.html I am using the following versions: - IKVM (0.42.0.6) - PDFBox (1.2.1) JAR file The problem is that when I try to create the DLL a series of error messages are displayed - i.e. "java.lang.NoClassDefFoundError". I am facing the same problem as the author here ( How to use PDFBox 1.0 in .net / C# environment using IKVM ) and tried the fix

pdfbox - sign landscape file error

大城市里の小女人 提交于 2019-12-04 17:19:00
I am using pdfbox-1.8.8 to do the signing function on PDF file. It works well with PDF file in portrait mode. But with landscape file, I have an issue It looks like the coordinate is wrong for the landscape file. Does anyone know what is wrong with the file ? Here is the link of pdf file Here is the code I used to sign public void signDetached(String inputFilePath, String outputFilePath, String signatureImagePath, Sign signProperties) { OutputStream outputStream = null; InputStream inputStream = null; PDDocument document = null; InputStream signImageStream = null; try { setTsaClient(null);

How to create a PDF document from languages of Unicode char set regarding using third party Fonts

有些话、适合烂在心里 提交于 2019-12-04 14:40:55
问题 I'm using PDFBox and iText to create a simple (just paragraphs) pdf document from various languages. Something like : pdfBox : private static void createPdfBoxDocument(File from, File to) { PDDocument document = null; try { document = new TextToPDF().createPDFFromText(new FileReader(from)); document.save(new FileOutputStream(to)); } finally { if (document != null) document.close(); } } private void createPdfBoxDoc() throws IOException, FileNotFoundException, COSVisitorException { PDDocument

Flatten vector graphics inside pdf and extract using java

百般思念 提交于 2019-12-04 13:31:27
问题 I am trying to get sizes (width and depth) of images embedded in a PDF file. The images in the PDF are all high resolution vector images. I tried using PDFBox. PDFBox libraries extract images perfectly for normal graphics. But, when it gets vector images, it extracts different layers as different images. I have also read about iText. But iText can convert the whole page as rasterized image. Whereas, my PDF page is actually consisting multiple images and I need to extract/get size of all of