Short answer: yes, but not by selling the PLR product as it comes out of the box. Those marketplaces you listed sell the same licences to thousands of people. If you upload an IDPLR ebook with its stock cover and the original sales page, you are competing with everyone else who paid the same $20, and most of them will undercut you on price. That version of the business is rarely profitable.
Customers almost never ask where a product came from. What they do care about is whether it solves a specific problem for them, whether they trust the person selling it, and whether the whole package feels worth the money. That is where the room to stand out sits. A generic "Social Media Marketing Guide" is worthless. The same content rewritten in your voice, aimed at one audience (say, mobile dog groomers in the UK) and updated with current platform changes becomes something that is yours.
A few practical ways people make this work:
- Treat PLR as raw material, not a finished product. Rewrite, re-cover, re-title, cut the padding.
- Pick a niche and stay in it so your store looks like a specialist rather than a jumble sale.
- Bundle. One guide plus templates, a checklist and a short video walkthrough is a different offer to a lone PDF.
- Add something that cannot be copied: a Q&A email, a private group, a monthly update.
- Check the licence terms properly. Some PLR cannot be resold with resale rights, and some marketplaces restrict where you can list it.
One UK-specific note. If you are selling digital content to consumers, the Consumer Contracts Regulations give buyers a 14-day cancellation right unless they expressly agree to immediate download and acknowledge they lose that right. Build that tick box into your checkout from day one. And keep an eye on turnover for VAT registration (currently £90,000), as digital products sold to EU consumers can bring their own VAT headaches.
Plenty of people do build steady income from this model. The ones who do are the ones who stop thinking of themselves as resellers and start treating the PLR as a head start on their own product.