Title: Error: Invalid input characters.
Last modified: December 15, 2022

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# Error: Invalid input characters.

 *  Resolved [teminet](https://wordpress.org/support/users/teminet/)
 * (@teminet)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/error-invalid-input-characters/)
 * Hello, while creating bills for some orders, I get the error below. It does not
   form the invoice.
 * Error:
 * Invalid input characters. Did you set $mpdf->in_charset properly?

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [teminet](https://wordpress.org/support/users/teminet/)
 * (@teminet)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/error-invalid-input-characters/#post-16293888)
 * I am using the paid version of the plugin. can you help me?
 *  [ansarybadal](https://wordpress.org/support/users/ansarybadal/)
 * (@ansarybadal)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/error-invalid-input-characters/#post-16335104)
 * Hi [@teminet](https://wordpress.org/support/users/teminet/)
 * Sorry for the delay in response.
   Such an issue needs to be inspected properly
   to find a solution. So, please, contact us from here so we can look properly.
 * Thank you,

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Error: Invalid input characters.’ is closed to new replies.

 * ![](https://ps.w.org/webappick-pdf-invoice-for-woocommerce/assets/icon-256x256.
   png?rev=2512818)
 * [PDF Invoices & Packing Slips for WooCommerce – Challan](https://wordpress.org/plugins/webappick-pdf-invoice-for-woocommerce/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/webappick-pdf-invoice-for-woocommerce/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/webappick-pdf-invoice-for-woocommerce/)
 * [Active Topics](https://wordpress.org/support/plugin/webappick-pdf-invoice-for-woocommerce/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/webappick-pdf-invoice-for-woocommerce/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/webappick-pdf-invoice-for-woocommerce/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [ansarybadal](https://wordpress.org/support/users/ansarybadal/)
 * Last activity: [3 years, 5 months ago](https://wordpress.org/support/topic/error-invalid-input-characters/#post-16335104)
 * Status: resolved