# Batch print paper checks

Print multiple queued paper checks in a batch.

This endpoint prints all specified checks, assigns sequential check numbers,
and returns a merged PDF containing all checks.

Prerequisites:
- All specified checks must have status 'not_printed'
- Use POST /print-later/ to queue checks first

Check number assignment:
Check numbers are assigned sequentially starting from first_check_number.
The order of paper_check_ids in the request determines:
1. The order of checks in the PDF
2. The order of check number assignment

Example:
If first_check_number=1001 and you print 3 checks, they will be numbered 1001, 1002, 1003.

Returns:
- pdf_content: Base64-encoded PDF with all checks
- printed_checks: List showing each check ID and its assigned check number
- total_printed: Count of checks printed

Endpoint: PUT /public/v1/paper-checks/print-batch/
Version: 1.0.0

## Request fields (application/json):

  - `paper_check_ids` (array, required)
    List of paper check IDs to print. Checks must have status 'not_printed'. The order of IDs determines the order of checks in the PDF and check number assignment.
    Example: [101,102,103]

  - `first_check_number` (integer)
    Starting check number for this batch. Subsequent checks will be numbered sequentially.
    Example: 10001

  - `template_id` (integer,null)
    Optional ID of a PaperCheckTemplate to use for formatting. If not provided, the default template will be used.
    Example: 1

## Response 200 fields (application/json):

  - `pdf_content` (string, required)
    Base64-encoded PDF content containing all printed checks

  - `printed_checks` (array, required)
    List of checks that were printed with their assigned check numbers

  - `printed_checks.paper_check_id` (integer, required)
    ID of the paper check that was printed
    Example: 12345

  - `printed_checks.check_number` (string, required)
    The check number assigned to this check
    Example: "10542"

  - `total_printed` (integer, required)
    Total number of checks printed in this batch
    Example: 5

## Response 404 fields (application/json):

  - `success` (boolean)

  - `errors` (object, required)

## Response 422 fields (application/json):

  - `success` (boolean)

  - `errors` (object, required)