PDF Form Field Name Inspector
Inspect a local PDF smaller than 50 MB. Show AcroForm field names, types, read-only flags and values in a table; export all fields as UTF-8 JSON or CSV. Read text fields (Tx), checkboxes and radio groups (Btn), and dropdowns and option lists (Ch).
About this pdf form field name inspector
Inspect a local PDF smaller than 50 MB. Show AcroForm field names, types, read-only flags and values in a table; export all fields as UTF-8 JSON or CSV. Read text fields (Tx), checkboxes and radio groups (Btn), and dropdowns and option lists (Ch) Parses and structures office document payloads locally in memory without transmitting private company files to external servers.
Document parsing & data extraction pipeline
Performs non-destructive manipulation of Portable Document Format (PDF) binary object streams in accordance with ISO 32000-1 and ISO 32000-2 (PDF 2.0). Operates on underlying PDF cross-reference tables (XRef), catalog dictionaries, page trees (/Pages), and content streams via pdf-lib and PDF.js. Implements symmetrical margin cropping based on existing CropBox / MediaBox origin coordinates [x, y], executes 90-degree page rotations, merges/splits page trees, and preserves AcroForm interactive form fields, annotations, and bookmarks.
Worked document extraction example
Scenario: Inspect the existing sample form
Sample input:
Illustrative output:
File size & structure constraints
Operational constraints and validation boundaries: Local processing only; no form editing, OCR or signature verification. XFA forms and password-protected PDFs are rejected. Flattened forms have no fields. Buttons, signatures and unknown fields are listed with a null value. Values retain JSON types: text, boolean, selection array or null. CSV uses a UTF-8 BOM, quoted cells and JSON-encoded values; cells starting with =, +, -, @, tab or carriage return receive an apostrophe for spreadsheet safety. Export keys and PDF type codes stay in English. File size must be below 50,000,000 bytes; this does not guarantee browser memory capacity.
PDF Form Field Name Inspector parses structured OpenXML and PDF data locally. Review exported tables or sheets against original files.
Zero-upload document security boundary
File buffers and document assets in PDF Form Field Name Inspector are processed in-memory via local browser APIs with zero file uploads to CZOA servers.
Document schemas & interchange standards
ECMA-376 Office Open XML specifications and ISO 32000 PDF reference standards:
PDF Form Field Name Inspector verification · Audit standards
How to use it
- Choose a PDF smaller than 50 MB
- Inspect form fields
- Download JSON
- Download CSV
Frequently asked questions
How does PDF Form Inspector inspect fields?+
Operational requirements for "How does PDF Form Inspector inspect fields?" are verified in local memory during execution of PDF Form Field Name Inspector.
Which controls and output are available?+
Download JSON; Download CSV
What limits apply to the inventory?+
Local processing only; no form editing, OCR or signature verification.
Inspect the existing sample form+
Load /examples/pdf-inspection.pdf, inspect the fields, then download JSON or CSV.