pdfbox

Rotate PDF around its center using PDFBox in java

感情迁移 提交于 2019-11-28 10:24:00
PDDocument document = PDDocument.load(new File(input)); PDPage page = document.getDocumentCatalog().getPages().get(0); PDPageContentStream cs = new PDPageContentStream(document, page,PDPageContentStream.AppendMode.PREPEND, false, false); cs.transform(Matrix.getRotateInstance(Math.toRadians(45), 0, 0)); I am using the above code to rotate the PDF. For the above image, i am getting following output From that code, the content of the page has been moving out of the frame and the rotation is not happening around its center. But i want to get the output as Please suggest me some options. Thanks in

PDFBox converting inches or centimeters into the coordinate system

[亡魂溺海] 提交于 2019-11-28 09:47:20
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. 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 to its MediaBox , the values increasing left to right and bottom to top. Thus, if you create a page using

PDFBOX Printing : Printed PDF contains Junk characters for Arabic text from the PDF

孤街醉人 提交于 2019-11-28 09:43:27
问题 I have a PDF file containing Arabic text and a watermark. I am using PDFBox to print the PDF from Java. My issue is the PDF is printed with high quality, but all the lines with Arabic characters have junk characters instead. Could somebody help on this? Code: String pdfFile = "C:/AresEPOS_Home/Receipts/1391326264281.pdf"; PDDocument document = null; try { document = PDDocument.load(pdfFile); //PDFont font = PDTrueTypeFont.loadTTF(document, "C:/Windows/Fonts/Arial.ttf"); PrinterJob printJob =

DPI of image extracted from PDF with pdfBox

China☆狼群 提交于 2019-11-28 09:14:24
问题 I'm using java pdfBox library to validate single page pdf files with embedded images. I know that pdf file itself doesen't contain the DPI information. However the images that have the equal dimensions in the document have different sizes in pixels after extracting and no dpi meta information. So is it possible to somehow calculate the image sizes relative to pdf page or to extract images with their dpi information (for png or jpeg image files) using pdfBox? Thanks! 回答1: Get the

Java: Apache PDFbox Extract highlighted text

↘锁芯ラ 提交于 2019-11-28 07:52:59
I am using Apache PDFbox library to extract the the highlighted text (i.e., with yellow background) from a PDF file. I am totally new to this library and don't know which class from it to be used for this purpose. So far I have done extraction of text from comments using below code. PDDocument pddDocument = PDDocument.load(new File("test.pdf")); List allPages = pddDocument.getDocumentCatalog().getAllPages(); for (int i = 0; i < allPages.size(); i++) { int pageNum = i + 1; PDPage page = (PDPage) allPages.get(i); List<PDAnnotation> la = page.getAnnotations(); if (la.size() < 1) { continue; }

PDFBox 1.8.10: Fill and Sign PDF produces invalid signatures

*爱你&永不变心* 提交于 2019-11-28 07:45:01
问题 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

Getting Text Colour with PDFBox

不问归期 提交于 2019-11-28 06:38:28
问题 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. 回答1: All color informations should be stored in the class PDGraphicsState and the used color (stroking/nonstroking etc.) depends on the used

Could someone give me an example of how to extract coordinates for a 'word' using PDFBox

不问归期 提交于 2019-11-28 06:38:24
问题 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. 回答1: You can extract the coordinates of words by collecting all the TextPosition objects

pdf reading via pdfbox in java

拟墨画扇 提交于 2019-11-28 06:21:03
问题 I have encountered a problem while reading the pdf using pdfbox. My actual pdf is partially unreadable so when i copy and paste the unreadable part in an editor it shows little box symbols, but when i try to read the same file via pdfbox , those characters aren't read (and i don't expect them to be read). What I expect is that I at least get some symbols or some random characters instead of the actual characters. Is there any way to do that. That line is getting selected so it isn't an image.

PDFBox pdf to image generates overlapping text

邮差的信 提交于 2019-11-28 06:17:16
问题 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";