PDF Form Fields
List every interactive form field in a PDF with its full name, its type (text, checkbox, radio group, dropdown, list box, button or signature), its current value and the options a choice field offers, in one Markdown table. Use it to inspect a form before filling it, to find the exact field names for automated filling, or to check what a returned form contains.
Frequently asked questions
What does the table show?
One row per field with its fully qualified name, its type, its current value and, for radio groups, dropdowns and list boxes, the options it offers. A summary line above the table gives the number of fields.
Why are some names written with dots?
Fields can be nested in groups, and the full name joins the group names with dots, such as address.city. Use exactly this name when you fill the form with the PDF Form Filler.
How are checkboxes and choices shown?
Checkboxes show Checked or Not checked. Radio groups show the selected option, and dropdowns and list boxes show their selected values separated by commas.
Which form types are supported?
AcroForm fields, the standard interactive forms of PDF. XFA forms, an older Adobe format built on XML, are not read; if a PDF has only XFA data, the tool reports that it has no form fields.
What if the PDF has no form?
The result says that the PDF has no form fields. Text that only looks like a form, such as lines and boxes printed on the page, has no fields to list.
Are button and signature fields included?
Yes, they are listed with their type, but they have no value to show. Signature fields are not validated.
Is there a limit on the number of fields?
The table shows up to 1,000 fields and says how many exist in total. Large government and tax forms usually stay well below that.
Is the PDF changed?
No. The tool only reads the form and returns the table as text, so your file stays exactly as it was.
Can I read a password protected PDF?
Yes. Enter the password in the password field if the file needs one to open. The password is not included in the result.
What are the limits?
Files up to 10 MiB and 200 pages and 30 seconds of processing per request. The table lists at most 1,000 fields.