@burnout426 Thank you so much for your insight! We did not think about other browsers having different Chromium versions. It turns out the issue only occurs for newer browser versions: Chromium version 92 and newer, and Firefox 90. Basic Opera and Opera GX apparently use Chromium 91. The PDFs upload correctly within Safari, but that hasn't been updated since 2015, so that makes sense. We're still researching why it only happens for some PDFs rather than any PDF, but it's good to know it's most likely related to recent browser updates.
Posts made by brigitte-at-seesaw
RE: PDF CompressionOpera for Windows
PDF CompressionOpera for Windows
This is not actually a problem with Opera, but rather a request for clarification on how the browser works. I work for Seesaw, answering emails to help solve customer problems. We've recently seen an uptick in tickets where PDFs show up blank when uploaded to a Seesaw post. To quickly explain that, Seesaw users can upload PDFs to a post. This converts the PDF into movable, resizable images across multiple pages. The issue being reported will make a 5 page PDF display as 5 seemingly blank pages on Seesaw; these blank images can still be moved and resized. It does not happen with all PDFs, so normally we would assume there is a corrupt asset in the PDF itself. However, customers have reported that when they tested other browsers, Opera is the only browser where uploading PDFs works properly. Our Research/Testing squad has done a lot of research as to why it might not be working in other browsers, but we are wondering why Opera works. We know that Opera has built-in compression technology. Could this be compressing/repackaging the PDFs, causing Opera users not to run into the same issue?