diff -uNr k2pdfopt_v2.51/willuslib/ocrtess.c k2pdfopt_v2.51.mod/willuslib/ocrtess.c
--- k2pdfopt_v2.51/willuslib/ocrtess.c	2020-01-01 21:00:39.794259355 +0200
+++ k2pdfopt_v2.51.mod/willuslib/ocrtess.c	2020-01-01 21:11:30.131964011 +0200
@@ -38,35 +38,39 @@
 static void endian_flip(char *x,int n);
 
 /*
-** Returns 0 for success, NZ for failure.
+** Determine OCR path.  Check both TESSDATA_PREFIX\tessdata AND TESSDATA_PREFIX
 */
-void *ocrtess_init(char *datadir,char *tesspath,int maxtesspathlen,
-                   char *lang,FILE *out,char *initstr,int maxlen,int *status)
+void ocrtess_datapath(char *datapath,char *suggested,int maxlen)
 
     {
-    char langdef[16];
-    void *api;
-    char tesspath0[MAXFILENAMELEN];
+    char path1[MAXFILENAMELEN-12];
+    char path[MAXFILENAMELEN];
+    char *p;
 
-    ocrtess_datapath(tesspath0,datadir,MAXFILENAMELEN-1);
-    if (tesspath!=NULL)
+    if (suggested!=NULL)
         {
-        strncpy(tesspath,tesspath0,maxtesspathlen-1);
-        tesspath[maxtesspathlen-1]='\0';
+        strncpy(datapath,suggested,maxlen-1);
+        datapath[maxlen-1]='\0';
+        return;
         }
-    if (lang==NULL || lang[0]=='\0')
-        ocrtess_lang_default(tesspath0,NULL,0,langdef,16,NULL,0,0);
-    else
+    if ((p=getenv("TESSDATA_PREFIX"))==NULL)
         {
-        strncpy(langdef,lang,15);
-        langdef[15]='\0';
+        datapath[0]='\0';
+        return;
         }
-    /* Tess v4.00 needs only one attempt with ocrtype=0 */
-    api=tess_capi_init(tesspath0,langdef,0,out,initstr,maxlen,status);
-    return(api);
+    strncpy(path1,p,MAXFILENAMELEN-13);
+    path1[MAXFILENAMELEN-13]='\0';
+    wfile_fullname(path,path1,"tessdata");
+    if (wfile_status(path)==2)
+        {
+        strncpy(datapath,path,maxlen-1);
+        datapath[maxlen-1]='\0';
+        return;
+        }
+    strncpy(datapath,p,maxlen-1);
+    datapath[maxlen-1]='\0';
     }
 
-
 void ocrtess_lang_default(char *datadir,char *tesspath,int maxtesspathlen,
                           char *langdef,int maxlen,char *tessdebug,int maxdebug,int use_ansi)
 
@@ -170,39 +174,33 @@
     filelist_free(fl);
     }
 
-
 /*
-** Determine OCR path.  Check both TESSDATA_PREFIX\tessdata AND TESSDATA_PREFIX
+** Returns 0 for success, NZ for failure.
 */
-void ocrtess_datapath(char *datapath,char *suggested,int maxlen)
+void *ocrtess_init(char *datadir,char *tesspath,int maxtesspathlen,
+                   char *lang,FILE *out,char *initstr,int maxlen,int *status)
 
     {
-    char path1[MAXFILENAMELEN-12];
-    char path[MAXFILENAMELEN];
-    char *p;
+    char langdef[16];
+    void *api;
+    char tesspath0[MAXFILENAMELEN];
 
-    if (suggested!=NULL)
-        {
-        strncpy(datapath,suggested,maxlen-1);
-        datapath[maxlen-1]='\0';
-        return;
-        }
-    if ((p=getenv("TESSDATA_PREFIX"))==NULL)
+    ocrtess_datapath(tesspath0,datadir,MAXFILENAMELEN-1);
+    if (tesspath!=NULL)
         {
-        datapath[0]='\0';
-        return;
+        strncpy(tesspath,tesspath0,maxtesspathlen-1);
+        tesspath[maxtesspathlen-1]='\0';
         }
-    strncpy(path1,p,MAXFILENAMELEN-13);
-    path1[MAXFILENAMELEN-13]='\0';
-    wfile_fullname(path,path1,"tessdata");
-    if (wfile_status(path)==2)
+    if (lang==NULL || lang[0]=='\0')
+        ocrtess_lang_default(tesspath0,NULL,0,langdef,16,NULL,0,0);
+    else
         {
-        strncpy(datapath,path,maxlen-1);
-        datapath[maxlen-1]='\0';
-        return;
+        strncpy(langdef,lang,15);
+        langdef[15]='\0';
         }
-    strncpy(datapath,p,maxlen-1);
-    datapath[maxlen-1]='\0';
+    /* Tess v4.00 needs only one attempt with ocrtype=0 */
+    api=tess_capi_init(tesspath0,langdef,0,out,initstr,maxlen,status);
+    return(api);
     }