: Use dark, saturated ink (black is safest) for maximum contrast.
: If you must stay in .txt, use Markdown (.md) to add structure like headers and lists that still read well in plain text. 3. Physical Paper for Scanning Valid.txt
: The "proper paper" here is a specific random alphanumeric string provided by your service (e.g., DigiCert or Squarespace). : Use dark, saturated ink (black is safest)