Add filter abbreviations used in images.

libclamav/pdf.c

@@ -675,13 +675,20 @@ struct pdfname_action {
 static struct pdfname_action pdfname_actions[] = {
     {"ASCIIHexDecode", OBJ_FILTER_AH, STATE_FILTER, STATE_FILTER},
     {"ASCII85Decode", OBJ_FILTER_A85, STATE_FILTER, STATE_FILTER},
+    {"A85", OBJ_FILTER_A85, STATE_FILTER, STATE_FILTER},
+    {"AHx", OBJ_FILTER_A85, STATE_FILTER, STATE_FILTER},
     {"EmbeddedFile", OBJ_EMBEDDED_FILE, STATE_NONE, STATE_NONE},
     {"FlateDecode", OBJ_FILTER_FLATE, STATE_FILTER, STATE_FILTER},
+    {"Fl", OBJ_FILTER_FLATE, STATE_FILTER, STATE_FILTER},
     {"LZWDecode", OBJ_FILTER_LZW, STATE_FILTER, STATE_FILTER},
+    {"LZW", OBJ_FILTER_LZW, STATE_FILTER, STATE_FILTER},
     {"RunLengthDecode", OBJ_FILTER_RL, STATE_FILTER, STATE_FILTER},
+    {"RL", OBJ_FILTER_RL, STATE_FILTER, STATE_FILTER},
     {"CCITTFaxDecode", OBJ_FILTER_FAX, STATE_FILTER, STATE_FILTER},
+    {"CCF", OBJ_FILTER_FAX, STATE_FILTER, STATE_FILTER},
     {"JBIG2Decode", OBJ_FILTER_DCT, STATE_FILTER, STATE_FILTER},
     {"DCTDecode", OBJ_FILTER_DCT, STATE_FILTER, STATE_FILTER},
+    {"DCT", OBJ_FILTER_DCT, STATE_FILTER, STATE_FILTER},
     {"JPXDecode", OBJ_FILTER_JPX, STATE_FILTER, STATE_FILTER},
     {"Crypt",  OBJ_FILTER_CRYPT, STATE_FILTER, STATE_NONE},
     {"Standard", OBJ_FILTER_CRYPT, STATE_FILTER, STATE_FILTER},