diff --git a/dlls/sane.ds/capability.c b/dlls/sane.ds/capability.c
index 17005cc..4faab59 100644
--- a/dlls/sane.ds/capability.c
+++ b/dlls/sane.ds/capability.c
@@ -22,6 +22,8 @@
 #include "config.h"
 
 #include <stdarg.h>
+#include <stdio.h>
+#include <math.h>
 
 #include "windef.h"
 #include "winbase.h"
@@ -165,7 +167,7 @@
     TW_ARRAY *a;
     static const UINT16 supported_caps[] = { CAP_SUPPORTEDCAPS, CAP_XFERCOUNT, CAP_UICONTROLLABLE,
                     ICAP_XFERMECH, ICAP_PIXELTYPE, ICAP_UNITS, ICAP_BITDEPTH, ICAP_COMPRESSION, ICAP_PIXELFLAVOR,
-                    ICAP_XRESOLUTION, ICAP_YRESOLUTION };
+                    ICAP_XRESOLUTION, ICAP_YRESOLUTION, ICAP_PHYSICALHEIGHT, ICAP_PHYSICALWIDTH };
 
     pCapability->hContainer = GlobalAlloc (0, FIELD_OFFSET( TW_ARRAY, ItemList[sizeof(supported_caps)] ));
     pCapability->ConType = TWON_ARRAY;
@@ -692,6 +694,81 @@
     return twCC;
 }
 
+static void convert_double_fix32(double d, TW_FIX32 *fix32)
+{
+    TW_INT32 value = (TW_INT32) (d * 65536.0 + 0.5);
+    fix32->Whole = value >> 16;
+    fix32->Frac = value & 0x0000ffffL;
+}
+
+
+#ifdef SONAME_LIBSANE
+static BOOL convert_sane_res_to_twain(double sane_res, SANE_Unit unit, TW_FIX32 *twain_res, TW_UINT16 twtype)
+{
+    double d;
+
+    if (unit != SANE_UNIT_MM)
+        return FALSE;
+
+    if (twtype != TWUN_INCHES)
+        return FALSE;
+
+    d = (sane_res / 10.0) / 2.54;
+    convert_double_fix32((sane_res / 10.0) / 2.54, twain_res);
+
+    return TRUE;
+}
+#endif
+
+/* ICAP_PHYSICALHEIGHT, ICAP_PHYSICALWIDTH */
+static TW_UINT16 SANE_ICAPPhysical (pTW_CAPABILITY pCapability, TW_UINT16 action,  TW_UINT16 cap)
+{
+    TW_UINT16 twCC = TWCC_BADCAP;
+#ifdef SONAME_LIBSANE
+    TW_FIX32 res;
+    char option_name[64];
+    SANE_Fixed lower, upper;
+    SANE_Unit lowerunit, upperunit;
+    SANE_Status status;
+
+    TRACE("ICAP_PHYSICAL%s\n", cap == ICAP_PHYSICALHEIGHT? "HEIGHT" : "WIDTH");
+
+    sprintf(option_name, "tl-%c", cap == ICAP_PHYSICALHEIGHT ? 'y' : 'x');
+    status = sane_option_probe_scan_area(activeDS.deviceHandle, option_name, NULL, &lowerunit, &lower, NULL, NULL);
+    if (status != SANE_STATUS_GOOD)
+        return sane_status_to_twcc(status);
+
+    sprintf(option_name, "br-%c", cap == ICAP_PHYSICALHEIGHT ? 'y' : 'x');
+    status = sane_option_probe_scan_area(activeDS.deviceHandle, option_name, NULL, &upperunit, NULL, &upper, NULL);
+    if (status != SANE_STATUS_GOOD)
+        return sane_status_to_twcc(status);
+
+    if (upperunit != lowerunit)
+        return TWCC_BADCAP;
+
+    if (! convert_sane_res_to_twain(SANE_UNFIX(upper) - SANE_UNFIX(lower), upperunit, &res, TWUN_INCHES))
+        return TWCC_BADCAP;
+
+    switch (action)
+    {
+        case MSG_QUERYSUPPORT:
+            twCC = set_onevalue(pCapability, TWTY_INT32,
+                    TWQC_GET | TWQC_GETDEFAULT | TWQC_GETCURRENT );
+            break;
+
+        case MSG_GET:
+        case MSG_GETDEFAULT:
+
+            /* .. fall through intentional .. */
+
+        case MSG_GETCURRENT:
+            twCC = set_onevalue(pCapability, TWTY_FIX32, res.Whole | (res.Frac << 16));
+            break;
+    }
+#endif
+    return twCC;
+}
+
 /* ICAP_PIXELFLAVOR */
 static TW_UINT16 SANE_ICAPPixelFlavor (pTW_CAPABILITY pCapability, TW_UINT16 action)
 {
@@ -793,6 +870,15 @@
         case ICAP_YRESOLUTION:
             twCC = SANE_ICAPResolution(pCapability, action, pCapability->Cap);
             break;
+
+        case ICAP_PHYSICALHEIGHT:
+            twCC = SANE_ICAPPhysical(pCapability, action, pCapability->Cap);
+            break;
+
+        case ICAP_PHYSICALWIDTH:
+            twCC = SANE_ICAPPhysical(pCapability, action, pCapability->Cap);
+            break;
+
     }
 
     /* Twain specifies that you should return a 0 in response to QUERYSUPPORT,
diff --git a/dlls/sane.ds/options.c b/dlls/sane.ds/options.c
index 98d83dc..4793883 100644
--- a/dlls/sane.ds/options.c
+++ b/dlls/sane.ds/options.c
@@ -137,4 +137,30 @@
         return SANE_STATUS_NO_MEM;
 
 }
+
+SANE_Status sane_option_probe_scan_area(SANE_Handle h, const char *option_name, SANE_Fixed *val,
+                                        SANE_Unit *unit, SANE_Fixed *min, SANE_Fixed *max, SANE_Fixed *quant)
+{
+    SANE_Status rc;
+    int optno;
+    const SANE_Option_Descriptor *opt;
+
+    rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_FIXED);
+    if (rc != SANE_STATUS_GOOD)
+        return rc;
+
+    if (unit)
+        *unit = opt->unit;
+    if (min)
+        *min = opt->constraint.range->min;
+    if (max)
+        *max = opt->constraint.range->max;
+    if (quant)
+        *quant = opt->constraint.range->quant;
+
+    if (val)
+        rc = psane_control_option(h, optno, SANE_ACTION_GET_VALUE, val, NULL);
+
+    return rc;
+}
 #endif
diff --git a/dlls/sane.ds/sane_i.h b/dlls/sane.ds/sane_i.h
index 9d0d123..18fd8bb 100644
--- a/dlls/sane.ds/sane_i.h
+++ b/dlls/sane.ds/sane_i.h
@@ -226,6 +226,8 @@
 SANE_Status sane_option_set_str(SANE_Handle h, const char *option_name, SANE_String val, SANE_Int *status);
 SANE_Status sane_option_probe_resolution(SANE_Handle h, const char *option_name, SANE_Int *minval, SANE_Int *maxval, SANE_Int *quant);
 SANE_Status sane_option_probe_mode(SANE_Handle h, SANE_String_Const **choices, char *current, int current_size);
+SANE_Status sane_option_probe_scan_area(SANE_Handle h, const char *option_name, SANE_Fixed *val,
+                                        SANE_Unit *unit, SANE_Fixed *min, SANE_Fixed *max, SANE_Fixed *quant);
 #endif
 
 
diff --git a/dlls/twain_32/tests/dsm.c b/dlls/twain_32/tests/dsm.c
index 37ebf3b..46d0c5a 100644
--- a/dlls/twain_32/tests/dsm.c
+++ b/dlls/twain_32/tests/dsm.c
@@ -391,6 +391,88 @@
     }
 }
 
+static void test_physical(TW_IDENTITY *appid, TW_IDENTITY *source, TW_UINT16 captype, TW_INT32 minimum_support)
+{
+    TW_UINT16 rc;
+    TW_STATUS status;
+    TW_CAPABILITY cap;
+    TW_UINT32 val;
+    TW_UINT16 type;
+    TW_INT32 actual_support;
+
+    memset(&cap, 0, sizeof(cap));
+    cap.Cap = captype;
+    cap.ConType = TWON_DONTCARE16;
+
+    rc = pDSM_Entry(appid, source, DG_CONTROL, DAT_CAPABILITY, MSG_QUERYSUPPORT, &cap);
+    get_condition_code(appid, source, &status);
+    ok(rc == TWRC_SUCCESS && status.ConditionCode == TWCC_SUCCESS,
+            "Error [rc %d|cc %d] doing MSG_QUERYSUPPORT for type 0x%x\n", rc, status.ConditionCode, captype);
+    if (rc != TWRC_SUCCESS)
+        return;
+    ok(get_onevalue(cap.hContainer, (TW_UINT32 *) &actual_support, NULL), "Returned cap.hContainer invalid for QuerySupport on type 0x%x\n", captype);
+    ok((actual_support & minimum_support) == minimum_support,
+            "Error:  minimum support 0x%x for type 0x%x, got 0x%x\n", minimum_support,
+            captype, actual_support);
+
+
+    if (actual_support & TWQC_GETCURRENT)
+    {
+        memset(&cap, 0, sizeof(cap));
+        cap.Cap = captype;
+        cap.ConType = TWON_DONTCARE16;
+
+        rc = pDSM_Entry(appid, source, DG_CONTROL, DAT_CAPABILITY, MSG_GETCURRENT, &cap);
+        get_condition_code(appid, source, &status);
+        ok(rc == TWRC_SUCCESS && status.ConditionCode == TWCC_SUCCESS,
+                "Error [rc %d|cc %d] doing MSG_GETCURRENT for type 0x%x\n", rc, status.ConditionCode, captype);
+        if (rc == TWRC_SUCCESS)
+        {
+            get_onevalue(cap.hContainer, &val, &type);
+            ok(type == TWTY_FIX32, "GETCURRENT for PHYSICALXXX is not type FIX32, is type %d\n", type);
+            GlobalFree(cap.hContainer);
+        }
+    }
+
+    if (actual_support & TWQC_GETDEFAULT)
+    {
+        memset(&cap, 0, sizeof(cap));
+        cap.Cap = captype;
+        cap.ConType = TWON_DONTCARE16;
+
+        rc = pDSM_Entry(appid, source, DG_CONTROL, DAT_CAPABILITY, MSG_GETDEFAULT, &cap);
+        get_condition_code(appid, source, &status);
+        ok(rc == TWRC_SUCCESS && status.ConditionCode == TWCC_SUCCESS,
+                "Error [rc %d|cc %d] doing MSG_GETDEFAULT for type 0x%x\n", rc, status.ConditionCode, captype);
+        if (rc == TWRC_SUCCESS)
+        {
+            get_onevalue(cap.hContainer, &val, &type);
+            ok(type == TWTY_FIX32, "GETDEFAULT for PHYSICALXXX is not type FIX32, is type %d\n", type);
+            GlobalFree(cap.hContainer);
+        }
+    }
+
+    if (actual_support & TWQC_GET)
+    {
+        memset(&cap, 0, sizeof(cap));
+        cap.Cap = captype;
+        cap.ConType = TWON_DONTCARE16;
+
+        rc = pDSM_Entry(appid, source, DG_CONTROL, DAT_CAPABILITY, MSG_GET, &cap);
+        get_condition_code(appid, source, &status);
+        ok(rc == TWRC_SUCCESS && status.ConditionCode == TWCC_SUCCESS,
+                "Error [rc %d|cc %d] doing MSG_GET for type 0x%x\n", rc, status.ConditionCode, captype);
+        if (rc == TWRC_SUCCESS)
+        {
+            get_onevalue(cap.hContainer, &val, &type);
+            ok(type == TWTY_FIX32, "GET for PHYSICALXXX is not type FIX32, is type %d\n", type);
+            trace("GET for Physical type 0x%x returns 0x%x\n", captype, val);
+            GlobalFree(cap.hContainer);
+        }
+    }
+
+}
+
 
 static void test_single_source(TW_IDENTITY *appid, TW_IDENTITY *source)
 {
@@ -453,10 +535,14 @@
                 TWQC_GET | TWQC_GETDEFAULT | TWQC_GETCURRENT);
         todo_wine
         ok(capabilities[ICAP_PLANARCHUNKY], "ICAP_PLANARCHUNKY not supported\n");
-        todo_wine
         ok(capabilities[ICAP_PHYSICALHEIGHT], "ICAP_PHYSICALHEIGHT not supported\n");
-        todo_wine
+        if (capabilities[ICAP_PHYSICALHEIGHT])
+            test_physical(appid, source, ICAP_PHYSICALHEIGHT,
+                TWQC_GET | TWQC_GETDEFAULT | TWQC_GETCURRENT);
         ok(capabilities[ICAP_PHYSICALWIDTH], "ICAP_PHYSICALWIDTH not supported\n");
+        if (capabilities[ICAP_PHYSICALWIDTH])
+            test_physical(appid, source, ICAP_PHYSICALWIDTH,
+                TWQC_GET | TWQC_GETDEFAULT | TWQC_GETCURRENT);
         ok(capabilities[ICAP_PIXELFLAVOR], "ICAP_PIXELFLAVOR not supported\n");
         if (capabilities[ICAP_PIXELFLAVOR])
             test_onevalue_cap(appid, source, ICAP_PIXELFLAVOR, TWTY_UINT16,