What project canvas dimensions should I select to import my PPT slides that are 4:3 (10" X 7.5")

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I have tried several project canvas dimensions, but none of them match my slides, leaving canvas visible on sides, or not showing the entire slide. Ack!
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Posted 1 year ago

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Photo of Dubie


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With a slide visible in the canvas,  Right-Click on the canvas and then "Project Settings"
Then click the little arrow for the canvas dimensions  and select "Fit to visible"

That Should adjust the canvas to your slide size.

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You could also calculate the size depending on the dpi (resolution) you want

For instance

10in is 960px @ 96dpi
7.5in is 720px @ 96dpi

So it would be 960x720 @96 dpi for 4:3

10in is 1080px @1080dpi
7.5in is 810px @ 1080dpi

So it would be 1080x810 @ 1080 dpi for 4:3

1in = your resolution(dpi)

So a 1080dpi  (4:3) video  would be a canvas size of 1080 x 810


10in x 1080 = 10800
7.5 x 1080 = 8100

We round it down to 1080 x 810

To verify 4:3 you divide your width by 4
and the height by 3

They should equal the same result


So  960px x 720px is

960/4 = 240
720/3 = 240


1080px x 810px is

1080/4 = 270
810/3 = 270

You can also use this converter to convert inches to pixels If all that math gives you a headache :-)
I no I have one now.


P.S. I think/hope all that math is correct

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1440 x 1080 for a 4x3 aspect ratio. This will give a  nice high resolution for crisp text on most displays and match the height on HD displays. If you are loading on to a media server that scales to multiple dimensions (and letterbox) it should use the 1080p dimension for the highest res where it would drop a 1200x900 down to 720p for the highest res.
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Joe Morgan

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Fit to visible only works correctly if your media is scaled to 100%.

Take this 1920 x 1080 video.Its scaled to 100% and the project is matched at 1920 x1080.

In this  "extreme example"I'm scaling the video down to 25 percent size. And applying scale to fit. As you can see the project dimensions become 480 by 269.

So fit to scale has to be used with caution.

As far as 4 by 3 aspect ratios go. In this day and age 4 by 3 aspect ratios only work with a media player on a computer screen. Unless I'm missing something. If you decide to render it at 4 by 3, it will display correctly in a media player but nothing else.

But if you're going to be displaying this on anything with a 16 by 9 aspect ratio. You may want to consider producing it that way. And live with borders around it. You can even put a subdued decorative background as long as it's not too distracting.

What size you produce your video to is really dependent on what size your images are. If your images are only 800x600 pixels. They might not look very good at 1920 by 1080. Because the up-scaling would probably make them look soft. So that's something you're going to have to take a look at and determine yourself.

Regards, Joe

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PBS and Turner Classic Movies often show 4:3 films, but (depending on who made the decision internally) retain the aspect ratio by putting black on the right and left, or scaling the video so that the image is cut off at top and/or bottom.  It's always a compromise when you go from one ratio to another.
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So here is something that may help take the guess work out of sizing the canvas with regards to Powerpoint Slides.

I haven't done a  4:3 size slide for a long time so I thought I would just do a bit of checking and testing.

Now I'm using Powerpoint 2019 desktop standalone so It may be a bit different for you in how Powerpoint outputs you PPT.

In Powerpoint I setup my slides for Standard 4:3

Design tab >> Slide size

and created my slide then saved as a ppt presentation.

Click on the Images to enlarge:

I brought the slides into Camtasia 2018 and then in the media bin right-clicked on the slide and selected "Details" to get what the slide size was.

In my case Powerpoint 2019 puts out a 4:3 slide at 1440 x 1080.

So if you go to the Project Settings and click Custom and put in the sizes from the details info
your canvas size should match the slide size.

I made different sizes and/or aspect ratios in Powerpoint and it was the best way I found to size the canvas to Powerpoint slides without a bunch of fiddling around and calculating.


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Jayne Davids

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Hi Carol,

I believe the way the PowerPoint import feature works is that Camtasia will always try to create a PNG slide that is 1080 pixels high - see this thread: https://feedback.techsmith.com/techsmith/topics/setting-resolution-of-powerpoint-slides-that-are-con...
So you may find importing slides is not the best option for you. Try using the Add-in from within PowerPoint. Make sure you set the Slideshow for 4:3. Mine recorded at 1024 x 768 which is a standard 4:3.

I hope this helps,

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Thank you for all the options for matching canvas size to my PowerPoint size. I am getting the idea, and will try the options offered. What a great community!