However recently some customers encountered issues during text replace when particular TextFragment is replaced with smaller contents and some extra spaces are displayed in resultant PDF or in case the TextFragment is replaced with some longer string, then words overlap existing page contents. So the requirement was to introduce a mechanism that once the text inside a PDF document is replaced, the contents should be re-arranged.
In order to cater above-stated scenarios, Aspose. The following code snippet shows how to replace text inside PDF file and the page contents should be re-arranged automatically. Replaceable symbols are special symbols in a text string that can be replaced with corresponding content at run time. Replaceable symbols currently support by new Document Object Model of Aspose. When adding TextFragment to the paragraphs collection of PDF documents, it does not support line feed inside the text.
However in order to add text with a line feed, please use TextFragment with TextParagraph :. Please take a look over the following code snippet for details on how to add replaceable symbol in the footer section. In some text operation, you need to remove all text from PDF document and for that, you need to set found text as empty string value usually.
The point is that changing the text for multitude text fragments invokes a number of checking and text position adjustment operations.
They are essential in the text editing scenarios. The difficulty is that you cannot determine how many text fragments will be removed in the scenario where they are processed in a loop.
Therefore, we recommend using another approach for the scenario of removing all text from PDF pages. Our fast and easy tool can instantly find and replace text without asking you to sign-up or install software on your computer.
We provide a web-based service and can search and replace text in PDF online. This HiPDF tool can support numerous latest platforms and browsers. Our team is working together beyond 10 years to provide users with simple yet functional interface tools. One of the most amazing tools is our PDF search and replace text tool to change text fast! Just choose the PDF file and then enter the replacement text and click replace.
Your file will be ready in a blink of an eye! HiPDF operates in the clouds. Just share the content with friends on your social media, you'll get 1 day free trial of HiPDF Pro once a week. Gain your membership to access to all powerful tools on HiPDF right now!
Please feel free to contact us when you meet any problem! Creativity Document Utility Support News. Choose File. Please Sign up or sign in to vote. See more: itextsharp. I need to find and replace a placeholder string in a PDF file.
The PDF file is loaded with the iText library and I have been trying to follow code samples to follow some code samples I have dug up, more often than not for the original Java implementation. The problem is that the samples don't work for my PDF file. I know that there is a text in there, because I first took a look at the contents of the file with a PDF parser. The parser will not allow me to make changes and write them back, but at least I know that there is something in there that can be found.
The name suggests that I must resolve these references to get objects which I can examine and modify, but i can't find any sample code for that. What I have tried: I have to work with an improvised setup with several computers and remote desktops at the moment, so I can't just post my experimental code right now. This is what I have: 1 Open a PdfReader works 2 Get a PdfDocument object with the reader works 3 Iterate through the pages of the document and get a Pdfpage object works 4 For each page get a PdfDictionary from the page object works 5 Get Pdf objects from the dictionary with dictionary.
Get PdfName. Contents works 6 Normally i would just have to iterate over the results from step 5 , but I only get PdfIndirectReference objects.
How can I resolve and edit these references? Copy Code. Posted Mar am CodeWraith. Add a Solution. ZurdoDev Mar am. It would help if you clicked Improve question and showed just some relevant code. CodeWraith Mar am. As you wish, but I doubt it will help very much.
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