You might be tempted by a quickly scanned PDF from 2008. Here is why:
The Jip and Janneke Omnibus is available for digital borrowing. This is a legitimate way to read the English translation online or as an encrypted download. jip and janneke english pdf
If you need Jip and Janneke in English immediately, you have two excellent legal options that are better than any unofficial PDF. You might be tempted by a quickly scanned PDF from 2008