PDFs still have drawbacks. They are a pain to view on a smartphone. Copying data from them is fiddly. Software tools that read screens for blind people struggle with PDFs. The file type, which Adobe relinquished control over in 2008, is also a vehicle for malware: a fifth of email-based cyber-attacks utilise PDF attachments, according to Check Point, a cyber-security firm.
Lately another source of criticism has emerged. The large language models underpinning generative AI are often bamboozled by PDFs, reading a page set in columns from left to right rather than top to bottom, say, or getting confused by headers and footers. Trouble parsing PDFs is one of the reasons AI chatbots occasionally “hallucinate”, generating nonsense