From f3fcd1b3a1e1de5795041d627c101a41383cbafe Mon Sep 17 00:00:00 2001
From: Eliot Jones <elioty@hotmail.co.uk>
Date: Wed, 5 Feb 2020 10:56:01 +0000
Subject: [PATCH] ignore form dictionaries that do not contain fields #131

though a form dictionary should always contain fields (as required by the spec) it is possible for this entry to be missing. in this case we return false for trygetform.
---
 src/UglyToad.PdfPig/AcroForms/AcroFormFactory.cs | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/UglyToad.PdfPig/AcroForms/AcroFormFactory.cs b/src/UglyToad.PdfPig/AcroForms/AcroFormFactory.cs
index fef344fd..bf4aaa00 100644
--- a/src/UglyToad.PdfPig/AcroForms/AcroFormFactory.cs
+++ b/src/UglyToad.PdfPig/AcroForms/AcroFormFactory.cs
@@ -82,12 +82,10 @@
             {
                 q = qToken.Int;
             }
-
-            var fieldsToken = acroDictionary.Data[NameToken.Fields.Data];
-
-            if (!DirectObjectFinder.TryGet(fieldsToken, tokenScanner, out ArrayToken fieldsArray))
+            
+            if (!acroDictionary.TryGet(NameToken.Fields, tokenScanner, out ArrayToken fieldsArray))
             {
-                throw new PdfDocumentFormatException($"Could not retrieve the fields array for an AcroForm: {acroDictionary}.");
+                return null;
             }
 
             var fields = new Dictionary<IndirectReference, AcroFieldBase>(fieldsArray.Length);