Adding ASCIIHexDecode pdf to test/pdfs

test/pdfs/asciihexdecode.pdf

@@ -0,0 +1,55 @@
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+	/Pages 2 0 R
+	/Type /Catalog
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+	/Count 1
+	/Kids [ 3 0 R ]
+	/Type /Pages
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+	/Parent 2 0 R
+	/Contents 4 0 R
+	/Resources <<
+		/Font <<
+			/F1 <<
+				/Name /F1
+				/BaseFont /Helvetica
+				/Subtype /Type1
+				/Type /Font
+			>>
+		>>
+	>>
+	/Type /Page
+>>
+endobj
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+<<
+	/Filter /ASCIIHexDecode
+	/Length 111
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+trailer
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+	/Size 5
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+startxref
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+%%EOF