Troubleshooting & Fixes Articles

Edge reclaims the PDF default every time Adobe updates — here's the Windows-level fix that sticks, plus why this keeps happening.

A blank PDF in Chrome or a spinner that never resolves has six distinct causes. This guide identifies which one you have and gives the exact fix.

Firefox's PDF.js viewer has specific failure modes that Chrome and Edge don't share. Here's how to diagnose and fix each one.

Changing the default PDF viewer is straightforward but the setting that sticks is different on Windows 11 vs 10 vs Mac — here's exactly where to find it on each.

The best annotation tool depends on whether you're on desktop or mobile, reviewing professionally or studying, and how much you're willing to pay. Here's the comparison.

PDF won't let you edit it? Here are the 6 real reasons why — and exactly how to fix each one.

Your PDF won't open — here's how to diagnose and fix the problem in Chrome, Edge, or Firefox in under five minutes.

Blank pages, missing text, wrong size, cut-off edges — here are 8 fixes for the most common PDF printing problems on Windows and Mac.

Browser PDF viewers break in surprisingly specific ways. Here's how to diagnose and fix the exact problem you're seeing in Chrome, Edge, or Firefox.