Well letter, legal vs A4 is a concern. Some printing drivers tends to alter content in the «fitting» process making some pdf hard to read. And screen tends to b

Well letter, legal vs A4 is a concern. Some printing drivers tends to alter content in the «fitting» process making some pdf hard to read. And screen tends to be in weired and diverse height vs width ratio. US standards are ridiculous. At least A1/A2/A3... are homothetic.