itext7

问题 I want to apply round corner border to a table. This table is dynamic. That means it can grow up to multiple pages or can accommodate in single page. If table comes in single page, then outermost corner of all four corner cells should be drawn as rounded. If table grows up to multiple pages (say 3 pages), then outermost corner of all four corner cells should be drawn as rounded for all 3 pages. Here is the approach which I am using to implement the above scenario. public void createPdf(String

问题 I have to make a pdf document like this. In itext 7, I made columns document by ColumnDocumentRenderer class but i can't made like this. Whole document was separated to two columns. https://riptutorial.com/itext/example/20402/text2pdfcolumns-java--itext-7- Can someonw help me? 回答1: I solved this problem by self. i refer these pages. https://kb.itextpdf.com/home/it7kb/ebooks/itext-7-building-blocks/chapter-2-adding-content-to-a-canvas-or-a-document https://kb.itextpdf.com/home/it7kb/examples

问题 what exactly does PdfPage.flush(true) do? Does SmartMode (or any other setting) affect the behavior? For many cases, i want to leave the page editable for as long as possible, so never worried that the PDF document was assembled in memory until document.close() . But when generating very large files (tens of thousands of pages), memory is becoming constrained. I was naively hoping that PdfPage.flush(true) would write the content stream to disk and free up memory, but calling flush(true) only

问题 I'm working on a program that creates several pdf docs and puts different text in the same location in them. Text should be placed in a particular area and if it doesn't fit it in width it should wrap. It also has a custom font and may be differently aligned in that area. It should be Vertically aligned to Top because when the area is laid out for three lines and I has only one, it should appear on the top. Finally, I need to preserve leading on the level of font-size. It is important to be

问题 I'm working on a program that creates several pdf docs and puts different text in the same location in them. Text should be placed in a particular area and if it doesn't fit it in width it should wrap. It also has a custom font and may be differently aligned in that area. It should be Vertically aligned to Top because when the area is laid out for three lines and I has only one, it should appear on the top. Finally, I need to preserve leading on the level of font-size. It is important to be

问题 I need to know the width (in point) of a Paragraph before add to the document. I searched here and found Alexey answer about Paragraph's height. So I made it with width, but it doesn't work. Always return the Rectangle's width no matter how long the Paragraph. I tried this code: private float getRealParagraphWidth(Document doc, Paragraph paragraph) { // Create renderer tree IRenderer paragraphRenderer = paragraph.createRendererSubTree(); // Do not forget setParent(). Set the dimensions of the

问题 Simple question , how to merge two PdfDocument objects using itext7 .net Library ? this is how am trying but it's not working PdfDocument GlobalPdfDocument = new PdfDocument(new PdfWriter(multiContentPdf)); PdfDocument InitialPdfDoc = new PdfDocument(new PdfWriter(memStreamOfAddressAndBarcode)); InitialPdfDoc.CopyPagesTo(1, InitialPdfDoc.GetNumberOfPages(), GlobalPdfDocument); also this code throw same exception Merger.Merge(InitialPdfDoc,1,InitialPdfDoc.GetNumberOfPages()); Cannot copy

问题 I have an HTML string, i need to convert it to pdf, but pdf that i need must have specific size and margin. I did as the example show, now i have pdf with width and height that i set, BUT i can`t change or delete the margin, so pls help me. using (FileStream fs = new FileStream(somePDFFile, FileMode.OpenOrCreate, FileAccess.Write)) { iText.Kernel.Pdf.PdfWriter pdfWriter = new iText.Kernel.Pdf.PdfWriter(fs); iText.Kernel.Pdf.PdfDocument pdfDoc = new iText.Kernel.Pdf.PdfDocument(pdfWriter); var

问题 I have an HTML string, i need to convert it to pdf, but pdf that i need must have specific size and margin. I did as the example show, now i have pdf with width and height that i set, BUT i can`t change or delete the margin, so pls help me. using (FileStream fs = new FileStream(somePDFFile, FileMode.OpenOrCreate, FileAccess.Write)) { iText.Kernel.Pdf.PdfWriter pdfWriter = new iText.Kernel.Pdf.PdfWriter(fs); iText.Kernel.Pdf.PdfDocument pdfDoc = new iText.Kernel.Pdf.PdfDocument(pdfWriter); var

问题 I'm using iText 7, specifically the HtmlConverter.ConvertToDocument method, to convert HTML to PDF. The problem is, I would really rather not create a PDF file on my server, I'd rather do everything in memory and just send it to the users browser so they can download it. Could anyone show me an example of how to use this library but instead of writing to file write to a MemoryStream so I can send it directly to the browser? I've been looking for examples and all I can seem to find are those