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

Related

Why sometimes githubusercontent makes image links into markdown format, not html?

I usually add my image on github blog by copying the locally saved image into
github code editor.
Then it makes a image's link, it usually saved into form of HTML.
but sometimes it makes MD(markdown) format, not HTML.
What is the condition of image link creation?
I want to know what determines the format of the image's link
I made 2 different images, and copied them into same github code editor.
then it returns 2 different image link, but the formats are different, too.
enter image description here

Does it matter how the background image is chosen in a folder?

I'm wondering if it matters when you save an image in a folder, like when you right click on an image, Do you choose:"Save link as" or "save image as" as I have tried both but for some reason I cannot display the image as my background for a website. Is there anything wrong with the code that I did? Every time I drag the URL into a new tab or browser I only get 6 bullet points on a blank page.
I mainly used an external CSS sheet, then decided to try to fix it by using an internal sheet on HTML, and since that did not work, instead I tried to implement it in the body tag rather than the header tag but nothing worked. Would I have to use the tag? But how else will I be able to implement a background?
file:///Users/kevinnguyen/Desktop/Screen%20Shot%202019-01-26%20at%2011.09.11%20PM.png
The one above is the HTML file.
file:///Users/kevinnguyen/Desktop/Screen%20Shot%202019-01-26%20at%2011.12.19%20PM.png
this is the external file of CSS.
I'm a new to programming as I self taught myself the basics, yet I want to learn so much of it, it's thrilling.
Your links to the images don't work because they point to files on your computer. You need to upload them somewhere and put the link here to be able to see them. Anyway, if you have background-image:url("6928140-swiss-alps.jpg") your image should be in the same folder as the css file. And it should be called 6928140-swiss-alps with the .jpg extension at the end.

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.

How to retrive image from image path in MySQL databse table using jsp?

I want to display the image on a jsp. I have the image path in the MySQL table where the image is uploaded or stored. Using that image path how can I display the image on the JSP?. Can anyone show me the code for the same?
You get your jsp to emit an image tag.
For example, if your imagepath column contains /assets/2015/abc123.jpg, you arrange for the web page your jsp is serving to contain a tag like this:
<img src="//static.example.com/assets/2015/abc123.jpg">
Then, when the browser goes to render the page your jsp sent out, it will fetch the image from the path.
Now, I am guessing at the rules you need to follow to turn the path in your column into a valid URL. The business about //static.example.com/ is my guess. But that is the basic idea.
Suppose there is an image stored in database as images/triangle.gif and in your project there is an image name triangle.gif under web/images folder. Then you can simply show the image like this.
<img src="${pageContext.request.contextPath}/images/triangle.gif">

Embed png image in html file using Jinja2

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 :)