--- a/src/gimage.cpp
+++ b/src/gimage.cpp	2026-01-25 09:12:18.000000000 +0800
@@ -6788,7 +6788,7 @@
 {
 	Exiv2::ExifData exifData;
 	int numerator, denominator;
-	
+
 	for (std::vector<std::string>::iterator it=taglist.begin(); it!=taglist.end(); ++it) {
 		//printf("%s %ld: ",(*it).c_str(), Exiv2::ExifKey(*it).defaultTypeId());  //keep for debugging
 		std::string name = split(*it,".")[2];
@@ -6841,22 +6841,24 @@
 	}
 
 	exifData.sortByTag(); 
-	
+
 	auto image = Exiv2::ImageFactory::open(filename);
 	image->setExifData(exifData);
 	if (profile != NULL) {
 		char * iccprofile;
 		cmsUInt32Number iccprofilesize;
 		makeICCProfile(profile, iccprofile, iccprofilesize);
-		Exiv2::DataBuf iccprof((Exiv2::byte *) iccprofile, iccprofilesize);
-		image->setIccProfile(iccprof);
+		// Exiv2 0.28.x:
+		Exiv2::DataBuf iccprof(iccprofilesize);
+		std::memcpy(iccprof.data(), iccprofile, iccprofilesize);
+		image->setIccProfile(std::move(iccprof));
 		delete [] iccprofile;
 	}
-	
+
 	try {
 		image->writeMetadata();
 	}
-	catch (Exiv2::AnyError& e) {
+	catch (Exiv2::Error& e) {
 		return GIMAGE_EXIV2_METADATAWRITE_FAILED;
 	}
 
@@ -6869,7 +6871,7 @@
 	std::map<std::string,std::string> imgdata;
 	Exiv2::LogMsg::setLevel(Exiv2::LogMsg::error); //suppress all exiv2 messages to stderr except errors
 	int i;
-	
+
 	try {
 		auto image = Exiv2::ImageFactory::open(filename);
 		//assert(image.get() != 0);
@@ -6895,7 +6897,7 @@
 					case Exiv2::signedLong:
 					case Exiv2::unsignedLongLong:
 					case Exiv2::signedLongLong:
-						imgdata[name] = tostr((unsigned short) exifData[*it].toLong());
+						imgdata[name] = tostr((unsigned short) exifData[*it].toInt64());
 						break;
 					case Exiv2::asciiString:
 					case Exiv2::date:
@@ -6907,22 +6909,22 @@
 			}
 		}
 	}
-	catch (Exiv2::AnyError& e) {
+	catch (Exiv2::Error& e) {
 		imgdata["Error"] = "Metadata read failure.";
 		return imgdata;
 	}
-	
+
 	return imgdata;
 }
 
 //loads metadata from a file into the gImage instance:
 GIMAGE_ERROR gImage::getMetadata(std::string filename)
-{	
+{
 	//debugging: displays any data collected prior to using exiv2:
 	//for (std::map<std::string, std::string>::iterator it=imginfo.begin(); it!=imginfo.end(); ++it) {
 	//	printf("%s: %s\n",it->first.c_str(), it->second.c_str()); fflush(stdout);
 	//}
-	
+
 	std::map<std::string,std::string> imdat = loadMetadata(filename.c_str());
 	
 	if (imdat.find("Error") != imdat.end()) {
@@ -6932,16 +6934,19 @@
 
 	for (std::map<std::string, std::string>::iterator it=imdat.begin(); it!=imdat.end(); ++it) 
 		imginfo[it->first] = it->second;
-	
+
 	auto image = Exiv2::ImageFactory::open(filename);
 	assert(image.get() != 0);
 	image->readMetadata();
 	 
 	char * prof;
 	if (image->iccProfileDefined()) {
-		prof = new char[image->iccProfile()->size_]; 
-		memcpy(prof, image->iccProfile()->pData_, image->iccProfile()->size_);
-		setProfile(prof, image->iccProfile()->size_);
+		// iccProfile() returns const DataBuf&
+		// Need to make a copy to get non-const access
+		Exiv2::DataBuf iccBuf = image->iccProfile();
+		prof = new char[iccBuf.size()]; 
+		memcpy(prof, iccBuf.data(), iccBuf.size());
+		setProfile(prof, iccBuf.size());
 	}
 
 	return GIMAGE_OK;