React Native: Save local PDF file to users device - react-native

I have a PDF stored in my assets folder in my react native projects. I would like to give the user the ability to download this PDF to their device. I currently have it displaying on screen, but I can't figure out how to download the asset to the users device. I've seen plenty of examples of how to download items using a URL but nothing for local assets. The application is being build out in React Native for both iOS and Android.

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Expo Camera on Android doesn't work well as on Web

I'm developing a React Native app. I'm using Camera-Expo.
When I test it and take a photo on Web, it is saved as 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUg....' and it can be saved on cloudinary.com
Though when I test it on my phone using Expo, the photo is saved as 'file:///data/user/0/host.exp.exponent/cache/Experie.....' and it is not saved on cloudinary.com
How can I save the photos I make by phone on cloudinary?

Use ImageManipulator from Expo to change the captured file to base64 and then you can upload it on cloudinary

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It looks like react-native-fs (https://www.npmjs.com/package/react-native-fs) supports IOS and Android Devices. This allows you to create Files on the Device, and write any File content.

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True a php API I get the json from my sharepoint and all the data. Also the Image url that is stored there. Now the issue is when I get the image data and use it in React Native Expo on IOS it display's but on Android it doesn't.
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How to download assets on phone and use it in a react native app

I want to download images from server and use them in application.
Like many games on mobile do.
I also want that these files can not be seen in user's gallery and they can not delete it manually in React Native App

react-native-fs package can be used to download images from server and use them in your application.