PDF Form Fields to JSON
Export AcroForm field names, current values, types and choices from a fillable PDF into JSON.
Your input is sent to this site only after you choose Convert on server. The conversion runs for this request and no history is saved. Upload up to 4 MiB combined; Office files have a 2 MiB limit.
Choose your file
Choose a file or load the example to see how the converter works.
How to use PDF Form Fields to JSON
- Load the working example or provide your own input.
- Review the format options, then select Convert on server to process the input.
- Check the result and download the output file.
What this tool does
Inspect a fillable PDF before automating its completion. The report contains a values object and a field list with field names, types, read-only state and available choices where applicable. Text, checkboxes, radio groups, dropdowns and option lists are represented separately so their value types remain clear. The values object can be used as a starting point for the form-filling tool.
Supported formats and limits
This reads existing AcroForm fields, not text printed on an ordinary page or fields guessed from a scanned form. A PDF without form fields returns an empty collection. Signature fields and buttons are described without extracting cryptographic signature data. Password-protected and XFA-based workflows are unsupported. Input is limited to 4 MiB and 200 pages, and exported values are handled as server conversion data rather than saved to a history.
What should I check before using the result?
This reads existing AcroForm fields, not text printed on an ordinary page or fields guessed from a scanned form.
Is input uploaded?
This tool sends input to this site’s conversion API after you select Convert on server. Files use bounded workers and, when needed, private temporary folders deleted after processing or cancellation. No conversion history is saved. The converter does not upload files to a third-party conversion service.