20 MB Sample PDF Download

Calibrated to exactly 20,971,520 bytes for extreme upload boundary testing. Safe, neutral synthetic document designed for upload validation, server timeout testing, and QA test suites.

Download sample-20mb.pdf Preview Inline

Exact File Size

20,971,520 bytes

Target Boundary

20

Primary Use Case

Heavy payload & stress testing

The preview renders using your browser's PDF viewer. Click "Open full screen" if inline rendering is unavailable.

File Specifications

Accurate metadata and checksums for automated testing assertion libraries:

Property	Verified Value	Testing Significance
File Name	`sample-20mb.pdf`	Expected file name in multipart form payloads.
Exact Byte Size	`20,971,520 bytes`	Guarantees exact threshold testing without rounding ambiguities.
MIME Type	`application/pdf`	Standard header for upload filter and accept=".pdf" testing.
PDF Version	`PDF-1.4`	Universal backwards compatibility across all viewers and parsers.
SHA-256 Checksum	`caa67ac6e2d81b22e2034752505bb37544f63288b883c8cc79b047360b9deaac`	Verify byte-for-byte transmission integrity in CI pipelines.

Developer Quick Test Snippets

Copy and paste these pre-configured commands to test uploads, API endpoints, and browser automation:

1. Direct Download via cURL

curl -O https://samplepdf.org/files/sample-20mb.pdf

2. Python (Requests) Upload Test

import requests

url = "https://your-api.example.com/api/upload"
with open("sample-20mb.pdf", "rb") as f:
    response = requests.post(url, files={"file": ("sample-20mb.pdf", f, "application/pdf")})

print(f"Status: {response.status_code}")
assert response.status_code in [200, 201, 413]  # Expect success or Payload Too Large

3. Playwright E2E File Upload

import { test, expect } from '@playwright/test';

test('verify 20 MB Sample PDF Download upload limit', async ({ page }) => {
  await page.goto('https://your-app.example.com/upload');
  await page.setInputFiles('input[type="file"]', 'sample-20mb.pdf');
  await page.click('button[type="submit"]');
  // Add your expected assertion below:
  // await expect(page.locator('.toast')).toContainText('File uploaded successfully');
});

Why Test With This Specification?

20 MB is the ultimate stress test limit for web applications, testing whether edge reverse proxies (Cloudflare, Nginx, ALB) or serverless functions throw HTTP 413 Payload Too Large or gateway timeouts.

Boundary Condition Verification: Test whether limits like ≤ 20 work correctly or fail with off-by-one errors.
Error Message Validation: Confirm that exceeding limits triggers a clear, user-friendly "File too large" validation alert.
Network Resilience: Evaluate upload timeouts and progress bars under throttled network conditions.

Frequently Asked Questions

Why test with a 20 MB sample PDF?

Testing with a 20 MB document validates high-load scenarios: multipart chunked uploads to object storage (like AWS S3 or Google Cloud Storage), timeout handling on slow connections, and memory allocation in background document processors.

What is the exact byte size of the 20 MB PDF?

The file is calibrated to exactly 20,971,520 bytes (20 x 1,024 x 1,024 bytes), preventing any ambiguity during strict boundary checks.

Does downloading this large file have rate limits?

No. The file is served via global Cloudflare CDN with zero download throttling.