# Files size with bitmap

**URL:** <https://forum.lottiefiles.com/t/files-size-with-bitmap/5317>\
**Category:** Lottie in Figma\
**Created:** [February 5, 2024, 1:39pm UTC](https://forum.lottiefiles.com/t/files-size-with-bitmap/5317 "2024-02-05T13:39:59Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Michael4](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.lottiefiles.com/michael4/32/3381_2.png) [@Michael4](https://forum.lottiefiles.com/u/Michael4)\
**Post date:** [February 5, 2024, 1:39pm UTC](https://forum.lottiefiles.com/t/files-size-with-bitmap/5317/1 "2024-02-05T13:39:59Z")

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Hi guys,

I have an animation with a single PNG layer sized around 200KB. However, upon exporting the animation, the file size increases by almost 1MB compared to when the PNG layer is excluded.

Any idea if there’s something I can about this?

Many thanks for any help!

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**Author:** ![Michael4](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.lottiefiles.com/michael4/32/3381_2.png) [@Michael4](https://forum.lottiefiles.com/u/Michael4)\
**Post date:** [February 5, 2024, 4:27pm UTC](https://forum.lottiefiles.com/t/files-size-with-bitmap/5317/2 "2024-02-05T16:27:55Z")

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It seems like more ‘keyframes’ I have with this PNG, the heavier the file size is.

Also if I use the same PNG in more layers, the size grows as well.

In reality, the Lottie file should have the PNG only once and repeat it just as AfterEffects would do it.

I wonder if there is any fix for that?

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**Author:** ![briankarungany](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.lottiefiles.com/briankarungany/32/3657_2.png) [@briankarungany](https://forum.lottiefiles.com/u/briankarungany)\
**Post date:** [February 8, 2024, 10:33am UTC](https://forum.lottiefiles.com/t/files-size-with-bitmap/5317/3 "2024-02-08T10:33:01Z")

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Hey, do you mind sharing the Lottie?

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**Author:** ![Katty](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.lottiefiles.com/katty/32/2816_2.png) [@Katty](https://forum.lottiefiles.com/u/Katty)\
**Post date:** [September 4, 2024, 5:47am UTC](https://forum.lottiefiles.com/t/files-size-with-bitmap/5317/4 "2024-09-04T05:47:19Z")

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Hello,  
Animation Complexity: If the animation involves complex movements or transitions, it can significantly increase the file size. [securespend visa](https://www.securespend.com.co)  
Frame Rate: Higher frame rates mean more frames per second, which can add to the file size.  
Compression: The PNG format is lossless, meaning it retains all image data, which can result in larger file sizes compared to lossy formats like JPEG.  
Transparency and Color Depth: PNG supports transparency and a higher color depth, which can also contribute to a larger file size.  
Best Regards  
scott778