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Visit the official IDM website: To ensure you are purchasing a legitimate license, go to the official IDM website.
Select the Purchase Option: Navigate to the 'Purchase' or 'Buy' section. IDM offers various license options, including lifetime licenses.
Complete the Purchase: Follow the prompts to complete your purchase. You will need to provide payment information and an email address where your registration key will be sent.

You can download life time activated IDM from https://getintomypc.net

Caldwells' products have everything you need when it comes to doors and installations. No wonder I always work with them whenever I have a project. If you want to contact them, here's the link to their https://caldwells.com/interior-doors/shaker-doors