4-Step Local Browser PDF Mail Merge Checklist

FormBatch PDF AcroForm & CSV Field-Mapping Guide

Prepare your fillable PDF template and UTF-8 CSV spreadsheet for clean, deterministic 250-row batch runs—processed 100% locally in your browser with zero cloud uploads.

Filter Preparation Steps (1 Shown)

Jump to a specific stage of the FormBatch CSV-to-PDF preparation workflow:

Step 3 of 4 5-Row Local Preflight

Run a Free 5-Row Preview Batch to Verify Layout & Checkboxes

Test your longest company names, multi-line addresses, and checkbox values using a 5-row preview run before executing the full 250-row batch.

  • Check the longest text row in your CSV to ensure text does not clip inside narrow PDF boxes (enable auto-size font in your PDF field properties if needed).
  • For PDF checkboxes, use truthy CSV values ('true', 'yes', '1', or 'X') to check the box and empty or 'false' to leave it unchecked.
  • Confirm that zero network requests upload your PDF or CSV—all field merging happens inside your local browser tab.
Checkbox CSV Values Supported: Checked: true | yes | 1 | X | checked Unchecked: false | no | 0 | (empty)
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Up to 250 CSV Rows / Run

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