Most email servers have a hard attachment limit ranging between 10MB and 25MB. An 8MB PDF is the perfect proxy for a "heavy" business document—such as a scanned contract, a marketing portfolio, or a technical manual. It allows developers to test email uploaders and parsers without exceeding the typical server limits, ensuring the workflow handles substantial attachments without timing out.
Check if CDN caches files > 5 MB. Action: Request 8 MB PDF via API → inspect X-Cache headers. 8mb sample pdf file download
If you're testing compression software, starting with an 8MB file allows you to see significant, measurable results when it’s reduced to 1MB or 2MB. Most email servers have a hard attachment limit
| Attribute | Typical Value | |-----------|----------------| | File extension | .pdf | | Approximate size | 8,000 KB (8,192 KB exact = 8 MB) | | Page count | Varies (approx. 100–500 pages of plain text, or fewer with embedded images) | | Structure | PDF 1.4 or later (usually 1.7) | | Encryption | None (open, readable) | | Color space | RGB / Grayscale | | Fonts | Embedded standard fonts (Helvetica, Times) | | Compression | Often minimal (to maintain predictable size) | Check if CDN caches files > 5 MB