Browsers battle over PDF capabilities | ISO’s “Publicly Available Standards” page is gone | PDF to Brainrot | JHOVE update supports PDF 2.0 | The US Library of Congress updates email collection guidance leveraging EA-PDF | PDF crosswords | Alberta aligns with PDF 2.0, drops XFA | A potted history of PDF | ISO standardizes HDR gain-maps | a new release of veraPDF | PDF = “poison dart frog”.