pdf-generation

How to convert Assets Images & Icons to PdfImage in flutter using dart_pdf

由 [亡魂溺海] 提交于 2020-07-05 10:35:06
问题 Used Library: dart_pdf After searching I found the same issue in GITHUB but unable to resolve the issue. I tried this but blurry image appears. Please help!! ByteData data = await rootBundle.load('assets/test.jpg'); var codec = await instantiateImageCodec(data.buffer.asUint8List()); var frame = await codec.getNextFrame(); var imageBytes = await frame.image.toByteData(); PdfImage assetImage = PdfImage(pdf.document, image: imageBytes.buffer.asUint8List(), width: 86, height: 80); Rendered Image:

JSPDF .html() function returning blank pdf page

由 跟風遠走 提交于 2020-06-27 19:29:08
问题 Using the new jsPDF .html() pretty much pulled straight from their docs, but it still results in a blank page: Results in blank page: function saveDoc() { window.html2canvas = html2canvas const doc = document.getElementById('doc') if (doc) { var pdf = new jsPDF('p', 'pt', 'a4') pdf.html(doc.innerHTML, { callback: function (pdf) { pdf.save('DOC.pdf'); } }) } } Results in no PDF generated: function saveDoc() { window.html2canvas = html2canvas const doc = document.getElementById('doc') if (doc)

How to create annotation using PdfSharp to highlight text of existing PDF

由 人走茶凉 提交于 2020-06-27 12:03:16
问题 I would like know whether it is possible to create an text highlight annotation in an existing PDF using PdfSharp? In the PdfSharp documentation, I see examples of PdfTextAnnotation & PdfRubberStampAnnotation , but did not find sample code for following annotations mentioned in the documentation. PdfLineAnnotation, PdfSquareAnnotation, PdfCircleAnnotation, PdfMarkupAnnotation, PdfHighlightAnnotation, PdfUnderlineAnnotation, PdfSquigglyAnnotation, PdfSoundAnnotation, PdfMovieAnnotation. Are

How to include an external code file in rmakdown to output in pdf with sintax highlight

由 南笙酒味 提交于 2020-06-17 03:42:28
问题 My question is inspired from this one. However, the difference is that my output is PDF. I have a C++ code saved in an external file. I want to print it into a r markdown PDF with syntax highlight. My example.cpp code, which is in fact a TMB code: // Fitting Bivariate Gaussian distribution. #include <TMB.hpp> template<class Type> Type objective_function<Type>::operator() () { using namespace density; DATA_MATRIX(Y); PARAMETER_VECTOR(rho); PARAMETER_VECTOR(sigma); vector<Type> rho_temp(1); rho

Python/PyPDF4: How do I specify the /PageLabels in the created PDF?

由 ∥☆過路亽．° 提交于 2020-06-16 04:55:43
问题 I am using PyPDF4 to create an offline-readable version of the journal "Nature". I use PyPDF4 PdfFileReader to read the individual article PDFs and PdfFileWriter to create a single, merged ouput. The problem that I am trying to solve is that the page numbers of some issues do not start at 1, for example, issue 7805 starts with page 563. How do I specify the desired /PageLabels in the document catalog? for pdf_file in pdf_files: input_pdf = PdfFileReader(open(pdf_file, 'rb')) page_indices =

Converting HTML to PDF using iText

由 橙三吉。 提交于 2020-06-09 05:37:38
问题 I am posting this question because many developers ask more or less the same question in different forms. I will answer this question myself (I am the Founder/CTO of iText Group), so that it can be a "Wiki-answer." If the Stack Overflow "documentation" feature still existed, this would have been a good candidate for a documentation topic. The source file: I am trying to convert the following HTML file to PDF: <html> <head> <title>Colossal (movie)</title> <style> .poster { width: 120px;float:

TCPDF convert inline SVG with html into PDF

由 二次信任 提交于 2020-05-29 17:18:27
问题 I am using TCPDF to convert html into PDF. $pdf = new TCPDF(); $pdf->SetPrintHeader(false); $pdf->SetPrintFooter(false); $pdf->AddPage(); $html = '<div>Some random html </div>'; $pdf->writeHTML($html, true, false, true, false, ''); $pdf->Output('/pdf/output.pdf','F'); It works like a charm. But I have a case when (Dynamic) html has SVG inline code also. So I need to convert this html which has SVG into PDF. But it does not work. Below is my code. $pdf = new TCPDF(); $pdf->SetPrintHeader(false

! LaTeX Error: Environment threeparttable undefined

由 前提是你 提交于 2020-05-29 07:40:07
问题 When using R Markdown to create a pdf a get this error: output file: NCERA-210_Results.knit.md ! LaTeX Error: Environment threeparttable undefined. Error: Failed to compile NCERA-210_Results.tex. See NCERA-210_Results.log for more info. In addition: There were 50 or more warnings (use warnings() to see the first 50) Execution halted My code is: --- title: "NCERA-210 Results" author: "NAME" date: "8/29/2018" output: pdf_document --- ```{r setup, echo=FALSE, results="asis", message=FALSE,

How to Generate PDF in node.js

由 一个人想着一个人 提交于 2020-05-25 05:00:25
问题 I want to generate a module which will generate PDF by taking input as my Invoice and that PDF file is send to clients mail id automatic. In 1st step i got some code and try to generate PDF. That code is working fin and i am able to generate the PDF. but i am not able to open the file. for code i use this link:http://github.com/marak/pdf.js/ 回答1: Install http://phantomjs.org/ and the install the phantom node module https://github.com/amir20/phantomjs-node Here is an example of rendering a pdf

How to Generate PDF in node.js

由 偶尔善良 提交于 2020-05-25 05:00:11
问题 I want to generate a module which will generate PDF by taking input as my Invoice and that PDF file is send to clients mail id automatic. In 1st step i got some code and try to generate PDF. That code is working fin and i am able to generate the PDF. but i am not able to open the file. for code i use this link:http://github.com/marak/pdf.js/ 回答1: Install http://phantomjs.org/ and the install the phantom node module https://github.com/amir20/phantomjs-node Here is an example of rendering a pdf
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