It is my understanding the Discourse does not allow certain file attachments like PDF, Excel, Word etc. Another cloud based software that I use, uses Discourse as their Community and when I asked why we could not attach these types of files they said they were limited by Discourse. Jim

Adding File Type Attachments

cpradio (cpradio) 6 أبريل 2017، 9:35م 2

It is a site setting. I believe the setting is authorized extensions

الموضوع		الردود	مرات العرض
Allowable File Types Feature	1	2151	20 سبتمبر 2016
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File Extensions: Concern with allowing PDF and word? Support	2	683	8 مايو 2020
Can't find a way to attach pdfs to my topics Support	7	390	12 أكتوبر 2023
How to attach a PDF file? Support	15	3922	16 مارس 2022