how to upload and display E-books - upload

can help me someone, upload and display an E-books online reading? using html php Javascript and xampp
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```her is an image from the backend

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I am working on blog like web project using lexical editor in nextjs.
I am trying to implement image plugin in lexical editor. For now it coverts to base64 format which will be expensive for storing in database. Instead of storing base64 I want to store the image link along with other text inside database. Also I am facing issue to implement image plugin of lexical editor in nextjs.
steps I want to follow
I want to upload image in aws s3 and then want to show in editor as image.
Another way I am trying to implement like a modal will open where image can be selected
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I am working on a Ruby on Rails project. As I worked on converting all images into Webp format, the images (with Webp) are not previewing/displaying the image part with the link like when we share with someone on skype or slack.
Even if we try:
https://www.gstatic.com/webp/gallery/1.jpg
and https://www.gstatic.com/webp/gallery/1.webp
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Is it possible to access the iBooks PDF files from my custom application

I read and read Blogs in google but still could not draw the conclusion regarding,Can we upload the iBooks PDF files through the custom application? some says "No, there is currently no way to access this information"
I have a application like Gmail. now i want to send mail that may be image or PDF files. I can easily attach the Image files from my phone but could not excess the PDF from my iBooks.
Is it mandatory that PDF must be uploaded through iClouds?
Hope i could draw the conclusion regarding this Problem,from here..

Cloudinary creating a thumbnail on image upload

Cloudinary is generating a thumbnail for each image upload on their service. In fact, I found out that 1 uploaded image means:
1 resource image
1 derivative image
2 transformations
I was wondering whether it was possible or not to disable the "thumbnail feature".
Oh ... BTW, can someone explains why 2 transformations?
Cloudinary generates the thumbnails only if they are displayed in the Media library. In other words, when you upload via the API, then no thumbnail is created (unless it's viewed afterwards in the Media library).
Regarding the count - Cloudinary counts all processed images, which includes both uploads and image manipulations.
Have a look at the following for more information:
https://support.cloudinary.com/hc/en-us/articles/203619481-How-does-Cloudinary-count-transformations-
https://support.cloudinary.com/hc/en-us/articles/203125631-How-does-Cloudinary-count-my-plan-s-quotas-and-what-does-every-quota-mean-

How to upload x3dom files to be displayed like a gallery

I've been working with x3dom for the past month and now I wan to be able to display my work, does anyone know of an uploader where I could upload the x3dom file so that it is saved in a sort of image gallery, or is the only way to do it to keep copy pasting x3dom code to an html file and then upload thru ftp?
any variety of available upload scenarios will work
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