Sort of, since the original PDF is image based, the size of the PDF is relatively big in order to display the clear pixels. After the PDF is OCR scanned, all PDF contents are text based. It shall reduce the file size dramatically.
The following are some useful information: File size: 6.36 Mb Length: 2.7 Mb File name: e5eacad-11e9-11e9-4f88-7c0f076c15b6.pdf URL: Description: This is a document scan of my blog post in Chinese characters. I scanned and used Adobe Photoshop CS4. (Windows) I used a font in Teletype format, but I'm also free to use other Teletype font (Courier) in Photoshop. I hope you will enjoy it.