Overview
Referencing the following tweet, I tried adding images and a IIIF manifest to IPFS.
https://twitter.com/edsilv/status/1400221815369355267
For adding to IPFS, I used Fleek, which is also mentioned in the above tweet.
The following site was helpful for learning how to use Fleek.
Source Code
The source code is below.
https://github.com/nakamura196/fleek_test
Steps
Uploading Images
First, I uploaded the following image to the above repository.
https://github.com/nakamura196/fleek_test/blob/main/kunshujo_400.jpg
Following the reference site, I connected this repository to Fleek. As a result, it became accessible at the following URL.
https://ipfs.io/ipfs/QmbZekG5x834rwGKVZntBefkbNfL5auH171m4c26TZmCAo/kunshujo_400.jpg
Reference
I also downloaded the IPFS desktop app and entered “QmbZekG5x834rwGKVZntBefkbNfL5auH171m4c26TZmCAo”, which displayed the following.

Furthermore, I installed the following Google Chrome extension.
https://chrome.google.com/webstore/detail/ipfs-companion/nibjojkomfdiaoajekhjakgkdhaomnch
With the desktop app running, entering the earlier URL (https://ipfs.io/ipfs/…) resulted in it being converted to the following URL.
Uploading the Manifest File
Next, I created a manifest file. I created the following manifest file.
As a result, it became accessible at the following URL.
https://ipfs.io/ipfs/QmdS7UP4oSHw5wgG4T46NXvLrN17hCoWrSRgBQUtjCVpmM/manifest.json
When I displayed this manifest file in Universal Viewer, it was displayed correctly as shown below.

Summary
While there are still many things I don’t fully understand, I was able to add images and a IIIF manifest file to IPFS for now.