Is there a way where I can directly print html file or url without invoking any dialogs in .NET?
Yes. Try this program: http://cutycapt.sourceforge.net/. It will allow you to generate an image (or pdf) of a web page. Once you have that there are a variety of ways to print it. For example: Print existing PDF (or other files) in C#.
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I am working with an open source ETL tool (dagster) that allows me to attach some "metadata" to the results of each operation.
Typically the metadata should be text or numbers, but I want to insert an HTML snippet.
My issue is that the HTML is not "rendering" in the tool's web-ui. Here is a quick screenshot of the UI and the source tree:
Any ideas on how I can have it "render" in the UI?
I think the closest you can get to rendering HTML in Dagster is using the markdown metadata type. Rendering HTML is specifically not supported due to the possible vulnerabilities it could introduce.
i am looking for a creative solution for a new task.
my issue is we need a way to preview local files (extentions: doc, docx, ppt, pptx, pdf, tif, jpeg) in a frame or so of a different web page which provides a link.
preview should look like an image of the files or so.
we would like to prevent parsing the files to pdf in order to save time...
we are using angular 7, c# asp.net server side.
we are very limitted in most solutions, as the data is very secure and is used in an inner office net,
that is why we can't use the google docs solution.
i also understood that using iframe tag and pointing it src attribute to the file source doesn't load the page due to security resones.
in addition all users has the ability to preview the above files types when they do it straight from the document by the open with -> IE or other browsers options.
i tried :
<iframe src="file:///C:/Users/cd/Downloads/MyFile.docx"></iframe>
but:
the iframe tag doesn't open the doc file, i can see the iframe in the DOM as a new html but it doesnt have a content of anything
i tried also for images and the same, the frame is blank
If you are using chrome then chrome specifically blocks local file access this way for security reasons.
more detail is this link : here
One possible solution is, render the document pages as images and then display them on the web page i.e. using the iframe.
You may use GroupDocs.Viewer for .NET for rendering the document pages into high-fidelity images (PNG/JPG). You can then embed the images into your web page to preview the document. This is how you can get the image representation of the pages in a Word document:
using GroupDocs.Viewer.Options;
// Set output path
string OutputPagePathFormat = Path.Combine("D:\\output", "page_{0}.png");
// Render document pages
using (Viewer viewer = new Viewer("D:\\sample.docx"))
{
PngViewOptions options = new PngViewOptions(OutputPagePathFormat);
viewer.View(options);
// Rendered images will be saved in the D:\output\ directory.
}
Disclosure: I work as a developer evangelist at GroupDocs.
A flash file can be embedded in a PDF document. Does anyone know if it is also possible to embed an HTML webpage?
Added:
I don't mean just a plain HTML document, but a webpage with Javascript too.
The answer is no.
While you can embed videos, sounds and SWF files in a PDF, dynamic HTML files aren't supported. (Adobe AIR is more suitable to package and distribute HTML files).
The best you can do in a PDF is to use the ATTACH option in Adobe Acrobat. This will "attach" any file with the PDF document similar to how you add an attachment with an email. But the attachment can't be viewed within the PDF document, and has to be opened separately.
More info:
Javascript can be added to PDF files and used to manipulate various elements within the PDF file.
Not directly. Depending on what you're looking for, however, you can use something like dompdf (PHP) to generate a PDF file from an HTML document, then merge that document with your original. It even supports JavaScript, up to the level Adobe Reader supports JavaScript.
That said, the PDF file format is really for things you want to print (i.e. want to look the same everywhere), not things you want to click on (i.e. look sensible everywhere). Adobe's decision to include Flash support was probably made from a marketing standpoint, not a technical one.
The best workaround would be to create a web/html viewer in Adobe Flash and embed that in a PDF as an SWF. There is an option to "Add SWF" in Acrobat under "Rich Media."
Created a NPM module that allows you to add custom HTML and CSS to PDF's.
const pdf = require('add-html-to-pdf');
var options = {
input: 'sample.pdf',
output: 'done.pdf',
html: "<div style='color:red'>This is awesome!</div>",
useDocker: true
}
pdf.insertHTMLInPDF(options);
You could reconstruct the html, css and js on the web page using php.
Im using a plugin with a wordpress site that is pretty outdated but works very well for creating pdfs with html, css and javascript.
it's called tcpdf
plugins/tcpdf/tcpdf.php
https://tcpdf.org/examples/
the pdf is made on the fly as a function.
I am trying to generate a printable version of the HTML page, the printable version should have left pane and top pane stripped off. I tried to generate the printable version using JQuery, it has some layout issues while getting the stripped of content into the print preview screen(which is another stripped off HTML in pop up window).
Is there any ready made open source tool which converts HTML to PDF without much effort, because I have already lost quite a bit of time trying to explore in JQuery
I am using Grid 960 template layout
When you have processed the html, wkhtmltopdf (Windows/Mac/Linux) can convert it to pdf. wkhtmltopdf is a cross-platform, open source (LGPLv3) command line tool to render HTML into PDF and various image formats using the Qt WebKit rendering engine. These run entirely "headless" and do not require a display or display service.
wkhtmltopdf can be downloaded from the official wkhtmltopdf website. It is also in the default repositories of most common Linux distributions.
Examples
Convert a remote HTML file to PDF:
wkhtmltopdf http://www.google.com example.pdf
Convert a local HTML file to PDF:
wkhtmltopdf example.html example.pdf
wkhtmltopdf usage You can also display the wkhtmltopdf help locally by running wkhtmltopdf -H.
why not just use a print stylesheet, and let your users print to PDF if they want to?
http://www.alistapart.com/articles/goingtoprint/
I currently have a "PrintingWebService" that I call from an AJAX page with all the information that is needed to construct a highly customized PDF printout using PDF Sharp and the PDFSharp's GDI+ mode, which takes DrawString and other commands that work basically just like GDI+ only they are drawn to the PDF.
I then save the PDF file to a location on the webserver and return the file name from the web service, and the AJAX page opens a new window with the pdf file.
So far, it works well, however, there is one part of my AJAX page that I want to printout and I haven't come up with a solution for yet. I've got a string of the HTML content of a TinyMCE editor that I want to dispay in the bottom part of the PDF page.
I'm looking for some sort of tool I could use for this purpose. Even something opensource that prints to GDI+ I could use by taking the source code and translating it to use PdfSharp's GDI+ (the class names are like XGraphics, with each class having X before the GDI+ name).
If I have to I will limit what HTML can be generated by TinyMCE and write my own renderer, but that will be a big challenge, so I'm looking for other solutions first.
I've stayed away from a printer-friendly page approach because I wanted to construct a page that was a near identical of an existing WinForms printout, using my existing code. With PdfSharp I was able to convert all the code except the text area stuff (which used the RichTextBox and RTF in the WinForms version).
Tony,
I personally have used WebSupergoo's ABCPdf library with much success. You can actually render HTML directly to the PDF and it does fairly well in regards to accuracy.
Another free software that will allow you the flexibility of writing HTML to PDF that I have used in the past with much success is iTextSharp.
Otherwise, I think you'll have to write something to render HTML to GDI.
Either way, you may want to consider using an HttpHandler that you map to using your web.config to generate the PDF file. This will allow for you to render the PDF to a bytestream and then dump it directly to the user (as opposed to having to save each PDF receipt to the web server). It will also allow for you to use the .pdf extension in the page that returns the receipt (PurchaseReceipt.pdf could be mapped to a HttpHandler)... making it more cross-browser friendly. Older versions of Adobe / Browsers will not display correctly if you start throwing a PDF byte stream from an ASPX page.
Hope this helps.