The most reliable way to access Computer Arts digitally is through official publishers. Computer Arts was published by Future PLC. While the print edition has ceased, back issues are often available through:
Computer Arts ceased print publication in 2019 (transitioning to a digital-only "Creative Bloq" format). This makes existing PDFs historically finite. There will never be a new issue to buy. computer arts magazine pdf
Since its closure, several platforms have become the go-to repositories for digital back issues: Computer Arts Shuts Down - Aestetik The most reliable way to access Computer Arts