Embed png image in html file using Jinja2 - html

I'm using Jinja2 to create html reports as a single html file. I would like to include the company logo inside the html file rather than link to it; in this way the logo is displayed even if the person reading the report is offline. Can this be automatically done using Jinja2? If not how can I embed a png image in the html manually?

look for a Base64 encoder on Google (e.g. http://www.opinionatedgeek.com/dotnet/tools/base64encode/). After that you can insert
<img src="data:image/png;base64,BASE64_ENCODED_DATA">
in place for the logo :)

Related

How to include png as backgound image without downloading anything else than HTML?

I am generating one html file. The file should display 3 divs. Each div will have:
background-image: url("something.png");
Now, when user will download the file (e.g. chooses "save page as"), he will only get the HTML - without the actual png file.
How can I make sure that he is able to see them, without making him download them?
I've tried converting to SVG, but this pictures have multiple colors, and it totally failed.
You could just make it data-based, i.e.
background:url(data:image/png;base64,base64-encoded-image-goes-here)
It is possible to have jpg, gif, etc.
You can get the base64 image by using an image-to-base64 converter.

birt tool dynamic text with dynamic HTML having embedded image not showing in pdf

I am trying to display HTML content in PDF using eclipse Birt. Birt has Dynamic text(HTML format) pallets where we can display clob data. Here one of my HTML content is embedded image base64. While viewing in PDF the embeded html image is not displaying instead showing error msg "The resource content not found".
Birt expert please comment - On how to show Clob data embeded image dynamic HTML !
This is not going to work out of the box. BIRT HTML content is only meant for text formatting. Neither images nor HTML tables are supported (well, HTML tables actually are working to a minimal extent).
The best solution I can think of is: Parse the HTML yourself and extract the images yourself. But be warned, that's going to be tricky!
You would create two scripted DataSets, one for the text and one for the images.
Both DataSets would receive the HTML as input parameter.
The first one would just replace embedded images with a text like "see image #N" and return exactly one row.
The second one would extract the embedded images and return the image number, its URL and embedded data.
You could then use a List item in the layout to render the images after the text.
The script code will be complicated...

Insert an image into an html page without using outer resources using XSLT

I've just received an absoultely mad task of writing an xsl file that should provide an html page as an output.
The trick is that the only external resource allowed to be used is a css file. The page contains a number of images for elements that can't be generated with css. I know there is a way to embed images into an XSL file as, for example, a Base64 code.
Is there a way to insert these images into the resulting html? %)
Why can't you use CSS embedded image example?
There are many other examples available: https://www.google.ch/search?q=css+embedded+image

Open source program that can reference a converted image to the html

I would like to know if there is a program that can reference a converted image file to the actual html?
What I mean is that normally when you save a html page, there will be image saved in the folder together with the html. Suppose that I need to convert the image to some other type (example from gif to jpg), then the actual html saved that contains that image will be lost since the image has been converted. I wanted to view the same html page with the image converted and the html page will still display the same image. As such, back to the question, i wonder if such program exists?
I have tried to google it but I have found no such program exists.
What's wrong with just changing the relevant src attribute in the html file?

embed image in html and save for offline view (ie)

Is it possible to embed an image in my html code and make it avaible in offline mode. My goal is to create an html file without any other files associated with it.
Thanks
Yes.
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot">
Taken from http://en.wikipedia.org/wiki/Data_URI_scheme#HTML
You'll need a proper DataURL for your image. Try a utility like http://dataurl.net/#dataurlmaker to get the DataURL, which you can then copy into your html.