Try to eliminate more Windows build warnings.

pdfio-common.c

@@ -424,7 +424,7 @@ off_t					// O - Offset from beginning of file
 _pdfioFileTell(pdfio_file_t *pdf)	// I - PDF file
 {
   if (pdf->bufptr)
-    return (pdf->bufpos + (pdf->bufptr - pdf->buffer));
+    return (pdf->bufpos + (off_t)(pdf->bufptr - pdf->buffer));
   else
     return (pdf->bufpos);
 }
@@ -452,7 +452,7 @@ _pdfioFileWrite(pdfio_file_t *pdf,	// I - PDF file
       if (!write_buffer(pdf, buffer, bytes))
         return (false);
 
-      pdf->bufpos += bytes;
+      pdf->bufpos += (off_t)bytes;
 
       return (true);
     }

pdfio-file.c

@@ -2661,12 +2661,16 @@ write_trailer(pdfio_file_t *pdf)	// I - PDF file
             buffer[2] = (obj->offset >> 8) & 255;
             buffer[3] = obj->offset & 255;
             break;
+#ifdef _WIN32
+	default :
+#endif // _WIN32
         case 4 :
             buffer[1] = (obj->offset >> 24) & 255;
             buffer[2] = (obj->offset >> 16) & 255;
             buffer[3] = (obj->offset >> 8) & 255;
             buffer[4] = obj->offset & 255;
             break;
+#ifndef _WIN32 // Windows off_t is 32-bits?!?
         case 5 :
             buffer[1] = (obj->offset >> 32) & 255;
             buffer[2] = (obj->offset >> 24) & 255;
@@ -2701,6 +2705,7 @@ write_trailer(pdfio_file_t *pdf)	// I - PDF file
             buffer[7] = (obj->offset >> 8) & 255;
             buffer[8] = obj->offset & 255;
             break;
+#endif // !_WIN32
       }
 
       if (!pdfioStreamWrite(xref_st, buffer, offsize + 2))

pdfio-private.h

@@ -28,7 +28,7 @@
 #    define access	_access		// Map standard POSIX/C99 names
 #    define close	_close
 #    define fileno	_fileno
-#    define lseek	_lseek
+#    define lseek(f,o,w) (off_t)_lseek((f),(long)(o),(w))
 #    define mkdir(d,p)	_mkdir(d)
 #    define open	_open
 #    define read(f,b,s)	_read((f),(b),(unsigned)(s))

test-corpus.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+#
+# Script to test PDFio against a directory of PDF files.
+#
+# Copyright © 2025 by Michael R Sweet.
+#
+# Licensed under Apache License v2.0.  See the file "LICENSE" for more
+# information.
+#
+# Usage:
+#
+#   ./test-corpus.sh DIRECTORY
+#
+
+if test $# = 1; then
+    echo "Usage: ./test-corpus.sh DIRECTORY"
+    exit 1
+fi
+
+for file in $(find "$@" -name \*.pdf -print); do
+    ./testpdfio $file 2>$file.log || echo $file
+done

testpdfio.c

@@ -393,10 +393,7 @@ do_test_file(const char *filename,	// I - PDF filename
 
   // Try opening the file...
   if (!objnum)
-  {
     testBegin("%s", filename);
-    fflush(stdout);
-  }
 
   if ((pdf = pdfioFileOpen(filename, password_cb, (void *)password, (pdfio_error_cb_t)error_cb, &error)) != NULL)
   {
@@ -502,6 +499,9 @@ do_test_file(const char *filename,	// I - PDF filename
   else
   {
     // Error message will already be displayed so just indicate failure...
+    if (!objnum)
+      testEnd(false);
+
     return (1);
   }
 }
@@ -1248,16 +1248,9 @@ error_cb(pdfio_file_t *pdf,		// I  - PDF file
 {
   (void)pdf;
 
-  if (!*error)
-  {
-    // First error, so show a "FAIL" indicator
   *error = true;
 
-    testEnd(false);
+  testMessage("%s", message);
-  }
-
-  // Indent error messages...
-  printf("    %s\n", message);
 
   // Continue to catch more errors...
   return (false);

ttf.c

@@ -10,7 +10,7 @@
 //
 
 #ifdef _WIN32
-#  define _CRT_SECURE_NO_WARNINGS
+#  define _CRT_SECURE_NO_WARNINGS 1
 #endif // _WIN32
 
 #include "ttf.h"
@@ -38,16 +38,16 @@
 #  define access	_access
 #  define close		_close
 #  define fileno	_fileno
-#  define lseek		_lseek
+#  define lseek(f,o,w)	(off_t)_lseek((f),(long)(o),(w))
 #  define mkdir(d,p)	_mkdir(d)
 #  define open		_open
-#  define read		_read
+#  define read(f,b,s)	_read((f),(b),(unsigned)(s))
 #  define rmdir		_rmdir
 #  define snprintf	_snprintf
 #  define strdup	_strdup
 #  define unlink	_unlink
 #  define vsnprintf	_vsnprintf
-#  define write		_write
+#  define write(f,b,s)	_write((f),(b),(unsigned)(s))
 
 //
 // Map various parameters for POSIX...