PDF Error Code 413 - File Too Large

Getting Started

This article addresses the 413-error encountered when uploading large files or processing numerous jobs simultaneously on the LetterStream platform. It offers insights into the causes and provides actionable solutions, particularly for API users managing high-volume mailings.


In This Article


Understanding the 413 Error

A 413 error, labeled as “Request Entity Too Large,” occurs when a client's request exceeds the server's processing capacity. In the context of LetterStream, this typically happens when:

  • Attempting to upload an excessively large file.
  • Trying to process hundreds of mailing jobs simultaneously, specifically through the API without batch uploading.

While infrequent, this error is more prevalent among API users handling large volumes of mailings.


To minimize the risk of encountering the 413 error, API users should consider the following strategies:

  1. Maintain Adequate Account Funding
    • Regularly fund your account using the PrePay option to ensure sufficient funds for processing mailings.
  2. Set Up Low Balance Alerts
    • Enable notifications to alert you when your account balance is low, preventing interruptions in mailing processes.
  3. Optimize API Usage
    • Instead of sending numerous individual jobs, consolidate your mailings into one or two jobs per day, each containing multiple letters.

Managing a Full Shopping Cart

If you have accumulated hundreds of jobs in your shopping cart and are facing the 413 error:

  1. Add Funds to Your Account
    • Ensure your account has sufficient funds by adding money through the Prepay page.
  2. Process Jobs in Batches
    • Select 50 to 100 jobs at a time from your shopping cart.
    • Proceed through the checkout process for each batch.

By following these steps, you can effectively manage large volumes of mailings without encountering the 413 error.

Still need help? Contact Us Contact Us