React native pdf to image - react-native

So, I want to convert pdf pages into images in react native without compromising quality is there any best solution other than react-native-pdf-thumbnail.

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Using custom gif as a loading icon within <ActivityIndicator> using react-native

I am currently attempting to code an app in react native for an android device. I have created a custom loading component and am using the to show a loading icon.
But, I want to use a custom gif loading icon that contains my app's colours. I have looked but I cannot seem to find anything, is it possible to do this?
react native does not support gif feature in its raw form. However, in order to reach what you want and use gifs in the application, you can take a look at the accepted answer on the subject;
How do I display an animated gif in React Native?
Then all you need to do is to use Image component instead of ActivityIndicator. And passing the relevant gif information to the image component.

Converting an image into ASCII art in React Native

I am working on a React Native app that takes an image and converts it into ASCII art (in PNG/JPEG format so that I can add color). Which packages would I use and how would I do it? So far I haven't found a way to do it in React Native. I've found a way to do it in React but I don't know how I would translate it into React Native.
EDIT: I have tried to do it with Ionic React but the performance is much worse.
You could use a module that doesn't rely on React at all to generate the ASCII, such as this one:
https://github.com/IonicaBizau/image-to-ascii
If that doesn't work, you could create a separate React Web app and use react-native-render-html to render the React Web app within the React Native app.
https://github.com/meliorence/react-native-render-html

React native Library to take bitmap

I am Working on react native camera library to taking bitmap.
For example, when we capture a image it return image path, height, width etc.
Instead of these i need bitmap.
The best way to achieve what you're looking to do is likely going to be to use the Native UI Components API for iOS and Android to implement a custom native image view that applies the effects you are looking for.
React Native doesn't give the option of accessing access the raw bitmap data of the React Native (aka. RCTImage) component.

A more efficient way to render animated GIFs in React Native

I'm working on a react native app which works with a lot of animated GIFs.
I've tried using the react native documented library com.facebook.fresco:animated-gif:1.3.0 for animated gif support, yet, the performance of the default Image component is terrible, but using FastImage package I am able to get, at maximum, 10 gifs.
As there is the possibility of integrating the native libraries in React Native, I was wondering what could a solution to this problem?
I've tested a couple ways to increase the performance of loading multiple animated GIFs in React Native:
The better format for animated pictures is webp (Why?). Once compressed, it can be around 90% more lightweight to be loaded whether in your web app or your mobile app.
Facebook's Fresco library which is the documented recommended library for rendering gifs and webp files should be upgraded as it provides a better performance for multiple gif loading, and also the original fresco library should be added as a dependency - at the moment, to at least, 1.5.0 or higher, if possible w/ react-native:0.54 -.
FlatList can be optimized to remove anything that is not on the screen using removeClippedSubviews prop. Alternatively, there are third-party libraries such as recyclerlistview or lazy loading lists out there.
Using fast-image for caching can also be advantageous in some cases.

How to convert video files in react native?

I'm trying to record videos in react-native and upload them to S3. To do this, I need to convert the recorded videos into a lower quality format.
Is there a way to convert video files to a lower quality version in React Native?