I'm writing some java classes to test some libraries about the issue to extract text of a portion of a pdf page. I tested iText and PDFBox. Now I want to write a class using IcePdf, but I don't know how to do because I can extract the full page text and not a specific portion.
Can someone help me?
Related
(Edited)
I am posting question detailing the need to do 'CTRL+f' in Google Chrome to search a string in PDF. Can anyone please suggest some solution?
Testing requirement: Access a test application, open the PDF and search a testdata is present in the PDF or not.
Application overview: The test application opens the PDF in the embedded Goggle PDF viewer html view (sample screenshot attached in this comment below 'Sample PDF viewer.jpg'). In the PDF viewer, the PDF pages cannot be captured as web elements. So, the only way remains is to do 'CTRL+f', type-in the string in the search box and extract result from the search box.
Attachments:
The element's value which I'm looking to extract
Sample PDF viewer
(Original)
I'm able to open 'find box' (CTRL + F) in Chrome browser using Robot class and enter desired string in the 'find box'. How to extract the number of results from the find box using selenium in java language?
Attached image highlights the result (in yellow) I want to extract using selenium in java code.
Image
I am confused a bit. I want make & display simple editable and printable some Information Slip module and add to my Java desktop application. I am doing first time something like that and need any advice because of this.
I draw a sample Information Slip in Power Point just for an example. Can be seen at below;
Sender Informations info coming from some GUI Element. Also Service Name, Brand, Model, SeriNo, Sending Date and Product Problem infos.
Question 1: Should i create this Template in Java and fill it? If it yes; which classes can be helpful for this operation?
Question 2: If No; Which model should using for create Template (Excel, Word, PowerPoint) and Apache POI can be helpful for reading, displaying and editing template in JAVA Application?
I use itext library for creating PDF file because has very detailed rendering functions for PDF creation. When user click the button i write a template and fill the blank cells from DB everytime.
Than i use Icepdf library for show to user and taking output of the created pdf file.
But Icepdf has some character encoding problem i think. When PDf created and callled by Icepdf one of Turkish character looks as square. Turkish characters can be seen at this link. All characters rendered succesfully but eighth character at the link is not.
When i go to filepath of created pdf file (created by itext library) and open it manually with Adobe Acrobat Reader all characters showing correctly. But if programaticly Icepdf open the file and show to user, eighth character at the link looks as square.
I need change character encoding of Icepdf but i can't yet. Reading many articles about character and Font encoding of Icepdf but i have not yet succeeded. If i solve this character problem my application ready to deploy.
-- Character Issue Solved --
I solved the special character issue when PDF file shown on screen via IcePdf
If you are not using IcePdf Pro (which support all asian languages etc.) you need embed the third party Font file (which tested all your language's special character support font) when you create PDF file with iText. And IcePdf can use embedded Font file for render and show the document accurately now.
For how embed the Font files to the PDF with iText you should check my last question and answer about that;
Icepdf special character rendering issue
Any java library?
How to make searchable text using any java library?
Open source or Paid.
how to apply OCR to pdf using PDFBox?
how to make pdf text searchable programmatically using pdfbox
I searched alot. Didn't find any solution.
Can anyone paste code for OCR PDFBox.
Try Apache PDFBox.
To extract text: Textextraction.
Any java library? How to make searchable text using any java library? Open source or Paid.
You can achieve this using Gnostice XtremeDocumentStudio for Java. For more details, follow the link below.
http://www.gnostice.com/nl_article.asp?id=289&t=How_to_convert_scanned_images_to_searchable_PDF_in_Java
FYI, in the article, we have demonstrated how to convert scanned image to searchable PDF. In fact the input can be any scanned document (images, PDF or DOCX).
Disclaimer: I work for Gnostice.
You can use PDFBox to extract images from a PDF file, and then use the OCR system of your choice (for example, Tesseract) to obtain the text. Alternatively, if the PDF is mixed text and images, you can use Ghostscript to create an image of each PDF page, and then run OCR.
If you then need a searchable PDF file, build a new PDF by writing the text first, and then drawing the image over top of the text. The text will be searchable, but you will only see the image.
Note that OCR engines like Tesseract and Google Vision will return positional information for each word, so you will be able to place the text in the correct position.
How to generate the PDF in CQ5.6.1 using page content.
A button in my site (genarate PDF) on click of the button i have to genarate the PDF file using the same page content.
Please let me know is there any out of the box PDF genarator in CQ or do i need to get the any linsenced product to genarate the PDF.
Thanks..
Adobe CQ is integrated with the Apache FOP, a formatter able to create PDF files. This tutorial describes how to enable content rewriter providing PDF version of the content under the .pdf extension.
However, please keep in mind that this approach requires manually writing the XSLT transform file able to process your page (and every component on it) and output the XSL-FO document.
In a previous project (CQ 5.5) we used https://code.google.com/p/wkhtmltopdf/ to create PDF files.. worked pretty good!
I had used Phantomjs to create a a custom pdf from the cq5 pages. for example if you don not want to display the right trail in the pdf or you want to disable the header footer. all this can be achieved with the help of phantomjs.
create a servlet which will execute a command at your server.
phantomjs <custom.js> 'page_url' nameofthepdf.pdf
here custom.js will show or hide html content based on your need.
This will work for all pages irrespective of cq5 or any tool.
Is there any free Java library for extracting text from PDF, that is compatible with Google Application Engine?
I've read about PDFJet, but it can't read PDF, can it?
Is there perhaps other way how to extract text from PDF? I tried http://www.pdfdownload.org/, unfortunately they don't handle non-English characters correctly.
iText now has a text parsing module (I'm one of the parser authors). See the com.itextpdf.text.pdf.parser.PdfContentReaderTool class for an example of how to use it.
PdfBox does not run on GAE. It uses not-allowed java classes.
(GAE only permits these http://code.google.com/appengine/docs/java/jrewhitelist.html)
I have partially modified a very old version of PdfBox (0.7.3) to be GAE complaiant. Now I'm able to extract text from PDF (whole page or rectangular area). I only modified a minumum part of the pdf text extraction and not the whole PdfBox. :)
The idea was to remove refences to java.awt.retangle & C. using my own "rectangle" class.
More info: http://fhtino.blogspot.com/2010/04/pdfbox-text-extration-gae.html
I modified the latest (1.8.0-Snapshot) version to run on Google AppEngine. Had to disable one Unit-Test, but it runs fine for simple text extraction.
Following the simple try-fail-fix approach i had to modify 5 files in total. Pretty doable.
You'll also have to explicitly use a RandomAccessBuffer, like Fabrizio explained.
For the extra lazy, heres the compiled jar, dependencies for text extraction, and the patch. Note that it might not work for every usecase (i.e. rectangle based extraction). Used it to extract text of a whole page.
https://docs.google.com/folder/d/0B53n_gP2oU6iVjhOOVBNZHk0a0E/edit
I know there is http://pdfbox.apache.org/index.html
Apache PDFBox is an open source Java
PDF library for working with PDF
documents. This project allows
creation of new PDF documents,
manipulation of existing documents and
the ability to extract content from
documents.
but I've never tested it.
Last month, I'd just finished extracting text from pdf file in my project. I used XPDF tool for getting text, and text coordinates, but I used it in Xcode (Objective-C). This tool was open source, written by C++, and able to be encoded in many language. However, I didn't know whether XPdf would be work on your java, or not. Anyway, You can try this tool.