kandi X-RAY | htmltopdf Summary
kandi X-RAY | htmltopdf Summary
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QUESTION
I got a JSON object like this:
...ANSWER
Answered 2021-May-21 at 08:50I fixed the problem by using mutators.
I updated my model class like this:
QUESTION
Hi i'm using SelectPdf for Net Core.
First i generate a method for convert html content to pdf, then i configure my pdf options and finally i add footer in all pages, this work but I can't find any property to center my footer in the document.
...ANSWER
Answered 2021-Apr-22 at 17:51The constructor of the PdfHtmlSection class has several overloads, one of them allows the X, Y axes and the url of the image. You can try assigning a value to the X axis which is the one that aligns horizontally, you can try the following code:
QUESTION
I am trying to use the Select.HtmlToPdf library https://www.nuget.org/packages/Select.HtmlToPdf/20.2.0
...ANSWER
Answered 2021-Apr-14 at 20:13The library is called Select.HtmlToPdf
, but the namespace it uses is SelectPdf
, so this should work:
QUESTION
I've a webpage with 4 charts. I'm taking separate screenshots for each of them. Then tried to put them on another canvas, show them vertically and print it as single-page pdf file. But, I'm getting an Error saying:
Here is the script ...Uncaught TypeError: CanvasRenderingContext2D.drawImage: Argument 1 could not be converted to any of: HTMLImageElement, SVGImageElement, HTMLCanvasElement, HTMLVideoElement, ImageBitmap.
ANSWER
Answered 2021-Apr-12 at 16:51Since you didn't mention it, I'll assume html2canvas
is coming from https://github.com/niklasvh/html2canvas
In that case, the issue here is that hmtl2canvas
returns a Promise
and that's what you're passing to verticalCanvases
instead of the actual canvas element.
To fix it just transform the function in an asynchronous one so you can use async
/await
:
QUESTION
I am using wkhtmltopdf 0.12.5 with NReco (Asp.net core). I have set TOC to true
...ANSWER
Answered 2021-Mar-16 at 12:07This is a known issue in wkhtmltopdf 0.12.5 release: https://github.com/wkhtmltopdf/wkhtmltopdf/issues/3989
It fix that it is enough to upgrade to latest 0.12.6 release (or downgrade to 0.12.4 if this is not possible for some reason).
QUESTION
I am trying to write a script that will output a PDF with values that have been inputted into a form. On this PDF, I would like to include a logo at the top of the page, which is an image in a Google Drive folder.
Based on this question (and others), the image needs to be converted to base64 and then added to the HTML.
My issue is that even when I do this, the image still does not show up in the PDF file.
Here is my current code, just trying to output a PDF with the image, and nothing else
...ANSWER
Answered 2021-Feb-04 at 10:55QUESTION
I'm trying to crop the PDF/Image File Before I convert it to Image. So in this code i generate a pdf file, and I want to crop it Before / After I convert it to image.
The issue here is how I can set or crop the image i generate from the pdf?
Here is the Code I'm using:
...ANSWER
Answered 2021-Jan-28 at 06:08I would use CroppedBitmap
QUESTION
anyone using SelectPDF in ASP.NET MVC project here? I have two files, content.cshtml and also header.cshtml. I want to create an invoice which header is actually a table with page number shown as following prototype:
The header template including the logo and table is ready in header.cshtml. Without the header, I can convert the content using the following code without problem:
...ANSWER
Answered 2020-Nov-19 at 16:05You are working with ASP.NET MVC project, but the Documentation page you cite provides a sample for ASP.NET project.
Here is a code sample which will work for ASP.NET MVC:
QUESTION
I m going to create an api which converts html to PDF file. I made it using pdfkit and fastapi. But it saves The file to my localhost. After i serve this api on online, how users can download this PDF file to their computer.
...ANSWER
Answered 2020-Oct-23 at 08:30Returning FileResponse is solved my problem. Thanks to @Paul H and @clmno Below codes are working example of returning pdf file to download with FastApi.
QUESTION
I'm trying to make a piece of code run faster. The code is already using async/await. But it's still slow.
So I tried to alter my foreach to use the new IAsyncEnumerable. However I gained 0 performance from this. And it appears to run the code sequentially. Which surprised me. I thought the await foreach
would run each iteration in its own thread.
Here's my attempt at speeding up the code.
...ANSWER
Answered 2020-Oct-22 at 19:16The problem with your foreach
and await foreach
approaches is they are going to execute sequentially (even though they take advantage of the async and await pattern). Essentially, await
does exactly that, awaits.
In regards to the Parallel.ForEach
your suspicions are correct, it's not suitable for async methods an IO bound workloads. Parallel.ForEach
takes an Action delegate and giving an async lambda to an Action
actually just creates an async void
with the consequence of each task running unobserved (which has several disadvantages).
There are many approaches to take from here, but the simplest is to start each task hot, project them to a collection, and await
them all to completion. This way you are letting the IO bound workloads offload (term used loosely) to an IO Completion Port, thus allowing any potential thread to go back to the thread pool to get reused by the Task Scheduler efficiently until the IO work completes.
Assuming there are no shared resources, just project the started tasks to an IEnumerable>
and use Task.WhenAll
Creates a task that will complete when all of the supplied tasks have completed.
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