Nobody thinks wholesale buyers need sparkle. They do need orientation: where they are in the book, fast zoom on part numbers, and a frame that says “we meant to publish this,” not “here is a file attachment.”
Plain PDF tabs are fine for one-off quotes. Seasonal line cards and multi-category catalogs are different—buyers flip between sections, compare spreads, and forward links to procurement. A flipbook-style viewer keeps the toolbar and zoom in predictable places so the conversation stays on product, not on fighting the reader UI.
Many teams find that a branded viewer gets more serious attention than a raw attachment: the publication looks intentional, and navigation stays in one place instead of depending on whatever PDF app the reader has installed.
If your catalog is three pages and rarely updated, you might not need more than a PDF. If it is the main sales surface for half the year, invest in presentation and a stable URL your reps can memorize.
For tactics, pair this with digital catalog vs static PDF and catalog examples.