How can you get sharper images on slides for training to show screen shots??

Hi everyone,


I'm really stgruggling to get sharp enough images to use on training on demain webinar where i cant always do a pre record screen share demo.


PLs can you give any advice - my jpgs etc are always sharp when i upload them, but get dregradded so much by the platform

This is a bit of a hack, but you could provide a high-res PDF if you find the platform itself is degrading the images or you can't get decent enough quality out of video.


They could download that and follow along.


Nice thing there is that it serves as a guide afterwards if they're trying to repeat the steps.

If you're already using hi res JPEG images, can you increae the size?

If you are doing onDemand then I use 16:9 widescreen powerpoint with high res images and mix it up that way plus the file size of the powerpoint is not limited whereas the video and butrate is if uou use it and yes yhere may be image quality loss but is minimal if using highres like say 2mb file size, all about testing.

another trst is dom5 slides and same image across all slides in different resolution and upload and test that way too. ON24 Tech support are good so they can also advise

I usually send images to our marketing team. They have accounts for software - like Adobe - where they are able to enhance an image.


Otherwise I try to find PNG files since they tend to offer the best quality.

I have not noticed too much of a problem with jpgs, but be careful with videos. The platform seems to make them very fuzzy.

You could be limited by the platform. We have had some fine small print resolution problems in the past. For example showing code on a training. Small font size etc.

It's definitely a really difficult problems as the platform will attempt to compress and optimize the images.


You want to make sure that whatever image you are producing is compressed and optimized to the best that you can get it and as sharp as you can get it at that point. Often times when this is the case it will have limited compression artificates and distortion when further compression is performed by the webinar tool.


If you are making the images in something like Photoshop, savings for web and devices as a PNG if you have text in them is usually the best option. While it doesn't provide the maximum compression, PNGs preserve the clarity of the text better when compressed normally and saving for web in Photoshop will give you a pretty good idea of how the image will look when it's compressed a bit.

PNG preserve the best clarity and quality even if the TIFF or JPG could be a good alternative.

We use all High Res jpegs and then we compress the size of hte PowerPoint and that has awlays worked. We are in the travel industry so our photo's are extremely important on webianrs. The one area that could use some work would be the video. No matter what we try to do the quality just isn't there for the uploaded version.

Hi Res j pegs. And remember that the quality of your screen may be (part of) the problem.

Hi-res images for sure. Sometimes our images don't load once we pull the decks, so we add those slides as jpgs and insert in and have good results.

We use PNGs, and have the best experience with them.

if you have a creative services team, they can often help with sizing images, making sure they are clean and optimizing them for online broadcast.

I leverage our creative team to deliver high-res images. I also use Adobe Photoshop to ensure image sizes and resolutions are where they need to be.

We also use our creative services for larger webinars with more visibility.

We also have had this issue. We design in Google Slides and when converting to PPT and uploading to On24, it distorts the quality of the images on our slides.

Definitely recommend high resolution images

I really appreciate this question because I have noticed the same thing with our on-demand videos. I’ll have to give PNG images a try!

All in all, you just need a good contractor and the right dimensions. That’s the only way to do it.

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