I have a task where I have to extract text which are behind images and have been OCR-ed from the image itself. This text is transparent. The problem is there is an image which has text behind it which is not OCR-ed, it is just normal text and it is not transparent. How can I differentiate between the needed (transparent)
Tag: pdf
Download pdf from response (okHttp3) – JAVA spring boot / display on browser
I’m working with external API , when I execute one of the request that returns pdf I cannot handle it in the server side . If I copy paste the api request : https://api.worldota.net/api/b2b/v3/hotel/order/document/voucher/download/?data={“partner_order_id” : “0d7836b4-2eba-475f-b2d6-1b95092534b0” , “language”:”en”} the browser open a pdf in the browser and download it . when I execute this url in the java code how
iText PDF: the document has no pages
I’m trying to do a date range based filter to export a report into a PDF; however, when I click to export the PDF, I get the following message: ExceptionConverter: java.io.IOException: The document has no pages. Here’s my PDF class’ code: And here’s the code of the PDF generation button: I believe there’s a problem with SQL and JDateChooser, since
PDF stuck in “printing” state using Java PDFBox 2.0.21
I am trying to setup a printer class in Java that can print PDF files using PDFBox. My printPdf method successfully adds the .pdf file in the printer’s queue but it does not print at all (it gets stuck in the “printing…” state). It only happens to some specific PDF files. For some pdf files it will work perfectly, for
Merge encrypted pdf file programmatically exception
I have been using the following code to merge encrypted pdf files programmatically. I started getting this error recently upon trying to create the pdfReader at this line of code: com.itextpdf.text.exceptions.InvalidPdfException: Unknown encryption type R = 6 at com.itextpdf.text.pdf.PdfReader.readPdf(PdfReader.java:738) at com.itextpdf.text.pdf.PdfReader.(PdfReader.java:181) at com.itextpdf.text.pdf.PdfReader.(PdfReader.java:219) at com.itextpdf.text.pdf.PdfReader.(PdfReader.java:207) at com.project.mainPageShop.mergeMyFiles(mainPageShop.java:4368) at com.project.mainPageShop$DownloadFileAsync.onPostExecute(mainPageShop.java:11757) at com.project.mainPageShop$DownloadFileAsync.onPostExecute(mainPageShop.java:11628) at android.os.AsyncTask.finish(AsyncTask.java:755) at android.os.AsyncTask.access$900(AsyncTask.java:192) at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:772) at android.os.Handler.dispatchMessage(Handler.java:107) at
Extract Checkbox value out of PDF 1.7 using PDFBox
I have recently started working with pdfbox to extract text out of pdf. Though along with text I also need to extract checkbox value show in image. I have tried different methods to find the checkbox element and extract its values. After researching the pdf text through this tool I found that the checkbox is not image or anything but
Why is the Digital Signature not visible in some PDF documents using iText 7.1.11?
My project digitally signs PDF documents using a digital certificate and displays the signature at the bottom left of the document. It had always worked well until now, there are some documents that are digitally signed but it is not shown although it is recognized that the rectangle where it is visible is. Could someone help with this, I leave
(Kind of solved but still appreciate better answers) Android Studio: How to identify certain special pages in a PDF file?
I am writing an app that generates Maths worksheets for school students. It will, for example, generate 2 to 5 pages of simple Maths questions and 1 to 2 pages of answers. The PDF can be saved to file and loaded again later. Then it has a print function that can print all the pages. I want to make it
How to convert a PDF to a JSON/EXCEL/WORD file?
I need to get data from the pdf file with its header for further comparing with DB data I tried to use the pdfbox , google vision ocr , itext, but all libraries gave me a row without structure and headers. Example: DatenNumbernStatusn12122020n442334delivered I will trying convert pdf to excel/word and get data from them, but for this realisation i
Docx to Pdf Converter in java
The below code is not working with Apache poi 3.16. Can someone provide with the correct solution, in my project there are some dependency for using only Exception: Answer The main problem with this is that those PdfOptions and PdfConverter are not part of the apache poi project. They are developed by opensagres and first versions were badly named org.apache.poi.xwpf.converter.pdf.PdfOptions