@@ -79,7 +79,8 @@ enum pdf_flag {

     UNKNOWN_FILTER,

     HAS_OPENACTION,

     BAD_STREAMLEN,

-    ENCRYPTED_PDF

+    ENCRYPTED_PDF,

+    LINEARIZED_PDF /* not bad, just as flag */

 };

 static int xrefCheck(const char *xref, const char *eof)

@@ -117,6 +118,7 @@ enum objflags {

     OBJ_FILTER_DCT,

     OBJ_FILTER_JPX,

     OBJ_FILTER_CRYPT,

+    OBJ_FILTER_UNKNOWN,

     OBJ_JAVASCRIPT,

     OBJ_OPENACTION,

     OBJ_HASFILTERS,

@@ -659,6 +661,7 @@ enum objstate {

     STATE_FILTER,

     STATE_JAVASCRIPT,

     STATE_OPENACTION,

+    STATE_LINEARIZED,

     STATE_ANY /* for actions table below */

 };

@@ -682,7 +685,9 @@ static struct pdfname_action pdfname_actions[] = {

     {"JPXDecode", OBJ_FILTER_JPX, STATE_FILTER, STATE_FILTER},

     {"Crypt",  OBJ_FILTER_CRYPT, STATE_FILTER, STATE_NONE},

     {"Standard", OBJ_FILTER_CRYPT, STATE_FILTER, STATE_FILTER},

-    {"Sig",    OBJ_SIGNED, STATE_NONE, STATE_NONE},

+    {"Sig",    OBJ_SIGNED, STATE_ANY, STATE_NONE},

+    {"V",     OBJ_SIGNED, STATE_ANY, STATE_NONE},

+    {"Linearized", OBJ_DICT, STATE_NONE, STATE_LINEARIZED},

     {"Filter", OBJ_HASFILTERS, STATE_ANY, STATE_FILTER},

     {"JavaScript", OBJ_JAVASCRIPT, STATE_S, STATE_JAVASCRIPT},

     {"Length", OBJ_DICT, STATE_FILTER, STATE_NONE},

@@ -712,7 +717,7 @@ static void handle_pdfname(struct pdf_struct *pdf, struct pdf_obj *obj,

 	     * we don't need them anyway */

 	    !(obj->flags & KNOWN_FILTERS)) {

 	    cli_dbgmsg("cli_pdf: unknown filter %s\n", pdfname);

-	    pdfobj_flag(pdf, obj, UNKNOWN_FILTER);

+	    obj->flags |= 1 << OBJ_FILTER_UNKNOWN;

 	}

 	return;

     }

@@ -815,6 +820,10 @@ static void pdf_parseobj(struct pdf_struct *pdf, struct pdf_obj *obj)

 	pdfname[i] = '\0';

 	handle_pdfname(pdf, obj, pdfname, escapes, &objstate);

+	if (objstate == STATE_LINEARIZED) {

+	    pdfobj_flag(pdf, obj, LINEARIZED_PDF);

+	    objstate = STATE_NONE;

+	}

 	if (objstate == STATE_JAVASCRIPT ||

 	    objstate == STATE_OPENACTION) {

 	    if (objstate == STATE_OPENACTION)

@@ -847,6 +856,10 @@ static void pdf_parseobj(struct pdf_struct *pdf, struct pdf_obj *obj)

 	    objstate = STATE_NONE;

 	}

     }

+    if (obj->flags & ((1 << OBJ_SIGNED) | KNOWN_FILTERS))

+	obj->flags &= ~(1 << OBJ_FILTER_UNKNOWN);

+    if (obj->flags & (1 << OBJ_FILTER_UNKNOWN))

+	pdfobj_flag(pdf, obj, UNKNOWN_FILTER);

     cli_dbgmsg("cli_pdf: %u %u obj flags: %02x\n", obj->id>>8, obj->id&0xff, obj->flags);

 }

@@ -978,7 +991,8 @@ int cli_pdf(const char *dir, cli_ctx *ctx, off_t offset)

     }

     if (pdf.flags & (1 << ENCRYPTED_PDF))

-	pdf.flags &= ~ (1 << BAD_FLATESTART) | (1 << BAD_STREAMSTART);

+	pdf.flags &= ~ ((1 << BAD_FLATESTART) | (1 << BAD_STREAMSTART) |

+	    (1 << BAD_ASCIIDECODE));

     if (pdf.flags) {

 	cli_dbgmsg("cli_pdf: flags 0x%02x\n", pdf.flags);

@@ -988,6 +1002,9 @@ int cli_pdf(const char *dir, cli_ctx *ctx, off_t offset)

 	    rc = CL_VIRUS;

 	}

 #if 0

+	/* TODO: find both trailers, and /Encrypt settings */

+	if (pdf.flags & (1 << LINEARIZED_PDF))

+	    pdf.flags &= ~ (1 << BAD_ASCIIDECODE);

 	if (pdf.flags &

 	    ((1 << BAD_PDF_TOOMANYOBJS) | (1 << BAD_STREAM_FILTERS) |

 	    (1<<BAD_FLATE) | (1<<BAD_ASCIIDECODE)|