diff --git a/PCAWG/mCNV_calling.R b/PCAWG/mCNV_calling.R
index 1a6cc20..d1605db 100644
--- a/PCAWG/mCNV_calling.R
+++ b/PCAWG/mCNV_calling.R
@@ -586,7 +586,7 @@ for (h in 0:(2 * len + 1)) {
       
       
       
-      png(filename=CNV_name_to_write, width = 640, height = 640)
+      png(filename=CNV_name_to_write, type = "cairo", width = 640, height = 640)
       
       plot(trans_values, ylim=c(0, max(trans_values) + 0.5), ylab="Copy Number", xlab="Samples from the largest cohort", main=CNV_name)
       abline(h=location)
diff --git a/PCAWG/mCNV_mature_genotyping.R b/PCAWG/mCNV_mature_genotyping.R
index 1e50c19..9d4050e 100644
--- a/PCAWG/mCNV_mature_genotyping.R
+++ b/PCAWG/mCNV_mature_genotyping.R
@@ -303,7 +303,7 @@ for (h in 0:(2 * len + 1)) {
         
         
         
-        png(filename=CNV_name_to_write, width = 640, height = 640)
+        png(filename=CNV_name_to_write, type = "cairo", width = 640, height = 640)
         
         plot(trans_values, ylim=c(0, max(trans_values) + 0.5), ylab="Copy Number", xlab="Samples from the largest cohort", main=CNV_name)
         abline(h=location)
diff --git a/PCAWG/normalization.R b/PCAWG/normalization.R
index fe84efb..675171e 100644
--- a/PCAWG/normalization.R
+++ b/PCAWG/normalization.R
@@ -202,7 +202,7 @@ rect.hclust(hc, k=num_of_clusters, border="red")
 
 
 plotDataFile <- function(x, functionType) {
-  png("data.file.png", width = 2500, height = 1600, pointsize=32)
+  png("data.file.png", type = "cairo", width = 2500, height = 1600, pointsize=32)
   if (identical(functionType, plot)) {
     functionType(x, pch=19, col=rgb(0,0,0,0.1))
   } else {
diff --git a/PCAWG/rCNV_calling_snp1.R b/PCAWG/rCNV_calling_snp1.R
index e210b6e..bb3c37a 100644
--- a/PCAWG/rCNV_calling_snp1.R
+++ b/PCAWG/rCNV_calling_snp1.R
@@ -472,7 +472,7 @@ for (h in 0:(2 * len + 1)) {
             
             pr = F
             if (pr) {
-              png(filename=CNV_name_to_write, width = 640, height = 640)
+              png(filename=CNV_name_to_write, type = "cairo", width = 640, height = 640)
               
               plot_st <- max(1,st - length_of_repr)
               plot_fn <- min(ncol(resid), fn + length_of_repr)
diff --git a/clinCNV.R b/clinCNV.R
old mode 100755
new mode 100644
diff --git a/generalHelpers.R b/generalHelpers.R
old mode 100755
new mode 100644
diff --git a/germline/helpersGermline.R b/germline/helpersGermline.R
index 93f79b6..5e1571d 100644
--- a/germline/helpersGermline.R
+++ b/germline/helpersGermline.R
@@ -228,7 +228,7 @@ Determine.gender <- function(normalized.coverage.corrected.gc, probes) {
       clusters <- clKmeans$cluster
       clusters[clusters == 1] <- "F"
       clusters[clusters == 2] <- "M"
-      png(filename=paste0(opt$out, paste0("/genders.png")), width=800, height=800)
+      png(filename=paste0(opt$out, paste0("/genders.png")), type = "cairo", width=800, height=800)
       plot(matrix_of_values, col = clKmeans$cluster, xlab="Y Chromsome", ylab="X Chromosome", pch=19, cex=2)
       points(clKmeans$centers, col = 1:2, pch = 8, cex = 10)
       dev.off()
@@ -480,7 +480,7 @@ returnClustering <- function(minNumOfElemsInCluster) {
     print(paste("You ask to clusterise intro clusters of size", minNumOfElemsInCluster, "but size of the cohort is", ncol(normal), "which is not enough. We continue without clustering."))
     
     setwd(opt$out)
-    png(filename="clusteringSolution.png", width=1024, height=1024)
+    png(filename="clusteringSolution.png", type = "cairo", width=1024, height=1024)
     plot(x, y, xlab="Coordinate 1", ylab="Coordinate 2", 
          main="Isometric MDS", type="n")
     text(x, y, labels = colnames(normal), cex=.7, col=clustering + 1)
@@ -567,7 +567,7 @@ returnClustering <- function(minNumOfElemsInCluster) {
   
 
   setwd(opt$out)
-  png(filename="clusteringSolution.png", width=1024, height=1024)
+  png(filename="clusteringSolution.png", type = "cairo", width=1024, height=1024)
   plot(x, y, xlab="Coordinate 1", ylab="Coordinate 2", 
        main="Isometric MDS", type="n")
   text(x, y, labels = row.names(distMatrix), cex=.7, col=clustering + 1)
@@ -621,7 +621,7 @@ returnTreeForCorrelation <- function(coverage.normalised.local, sdsOfGermlineSam
   trainingDataset = trainingDataset[-which(distnacesClose > 1000),]
   if (nrow(trainingDataset) > 100 & nrow(unique(trainingDataset)) > 10) {
   fit <- ctree(covariancesClose ~ (distnacesClose) + (sumOfLengths) + minLength + maxLength, data=trainingDataset, control=ctree_control(mincriterion = 0.99))
-  png(filename="treeOnCorrelationOfCoverage.png", width=4000, height=1800)
+  png(filename="treeOnCorrelationOfCoverage.png", type = "cairo", width=4000, height=1800)
   plot(fit)
   dev.off()
   } else {
@@ -885,7 +885,7 @@ returnClustering2 <- function(minNumOfElemsInCluster) {
     print(paste("You ask to clusterise intro clusters of size", minNumOfElemsInCluster, "but size of the cohort is", ncol(normal), "which is not enough. We continue without clustering."))
     
     setwd(opt$out)
-    png(filename="clusteringSolution.png", width=1024, height=1024)
+    png(filename="clusteringSolution.png", type = "cairo", width=1024, height=1024)
     plot(x, y, xlab="Coordinate 1", ylab="Coordinate 2", 
          main="UMAP", type="n")
     text(x, y, labels = colnames(normal), cex=.7, col=clustering + 1)
@@ -935,7 +935,7 @@ returnClustering2 <- function(minNumOfElemsInCluster) {
   palleteToPlot = rainbow(max(clustering))
   colsToPlot = sapply(1:length(clustering), function(i){palleteToPlot[clustering[i]]})
   setwd(opt$out)
-  png(filename="clusteringSolution.png", width=1024, height=1024)
+  png(filename="clusteringSolution.png", type = "cairo", width=1024, height=1024)
   plot(x, y, xlab="Coordinate 1", ylab="Coordinate 2", 
        main="UMAP", type="n")
   text(x, y, labels = row.names(distMatrix), cex=.7, col=colsToPlot)
diff --git a/germline/mCNVhelpers.R b/germline/mCNVhelpers.R
index 05f5f98..92099aa 100644
--- a/germline/mCNVhelpers.R
+++ b/germline/mCNVhelpers.R
@@ -342,7 +342,7 @@ findFinalState <- function(coverageNeededToCheck, toyBedFilePolymorphCurrent, mu
   diagnosticPlot = (length(which(copy_number != as.numeric(names(sort(table(copy_number),decreasing=TRUE)[1])))) >= 0.05 * length(copy_number))
   if (diagnosticPlot == T & plotting) {
     fileName = paste(numberOfClusterAnalysed, toyBedFilePolymorphCurrent[1,1], toyBedFilePolymorphCurrent[1,2], toyBedFilePolymorphCurrent[nrow(toyBedFilePolymorphCurrent),3], sep="_")
-    png(paste0(folder_name_mcnv, fileName, ".png"), width=length(copy_number) * 3, height=800)
+    png(paste0(folder_name_mcnv, fileName, ".png"), type = "cairo", width=length(copy_number) * 3, height=800)
     plot(coverageSummarised ** 2 * bestDivisor, col="black", pch=21,bg=coloursP[(copy_number + 1)])
     abline(h=bestLoc ** 2 * bestDivisor)
     dev.off()
diff --git a/mergeFilesFromFolder.R b/mergeFilesFromFolder.R
old mode 100755
new mode 100644
diff --git a/somatic/bafSegmentation.R b/somatic/bafSegmentation.R
index a3f0d29..17d09c2 100644
--- a/somatic/bafSegmentation.R
+++ b/somatic/bafSegmentation.R
@@ -253,7 +253,7 @@ determineAllowedChroms <- function(healthySample, tumorSample, healthySampleName
   subDir = paste0(tumorSampleName, "_", healthySampleName)
   dir.create(file.path(folderBAF, "result", subDir))
   setwd(file.path(folderBAF, "result", subDir))
-  png(paste0(tumorSampleName, "_", healthySampleName, ".png"), width=1400, height=600)
+  png(paste0(tumorSampleName, "_", healthySampleName, ".png"), type = "cairo", width=1400, height=600)
   op <- par(mar=c(11,4,4,2))
   x <- barplot(evaluated, col=colVec, main=paste(tumorSampleName, healthySampleName, "expected proportion of BAF with p < 0.05:", round(pvalueShift, digits=3)), ylim=c(0,1), xaxt="n")
   text(x-2.5, par("usr")[3] - 0.15, labels = plotLabels, srt = 45, pos = 1, xpd = TRUE)
@@ -262,7 +262,7 @@ determineAllowedChroms <- function(healthySample, tumorSample, healthySampleName
   abline(h=0.1, lwd=2, col="red")
   dev.off()
   
-  png("overdispersion.png", width=1024, height=1024)
+  png("overdispersion.png", type = "cairo", width=1024, height=1024)
   plot(overdispersionFactorsNornm ~ overdispersionFactorsTum, main="Dispersion over Binomial")
   dev.off()
   
diff --git a/somatic/helpersSomatic.R b/somatic/helpersSomatic.R
index 2440216..cc70782 100644
--- a/somatic/helpersSomatic.R
+++ b/somatic/helpersSomatic.R
@@ -145,7 +145,7 @@ formilngLogFoldChange <- function(pairs, normalCov, tumorCov, currentBedFile, ge
     predictions <- runmed(shiftsChrom, k = 51)
     shifts[whichChrom] = predictions
   }
-  png(paste0(opt$out, "/plot_with_shifts.png"), width=2000, height=1000)
+  png(paste0(opt$out, "/plot_with_shifts.png"), type = "cairo", width=2000, height=1000)
   plot(shifts)
   lines(shifts, col="red", lwd=3)
   dev.off()
@@ -443,7 +443,7 @@ makeBarplot <- function(allPotentialPurities, found_CNVs_total, sample_name) {
   }
   datasetForBarplot = (datasetForBarplot / 10**6)
   maxheight = max(datasetForBarplot)
-  png(paste0(sample_name, "_clonalityBarplot.png"), width=2400, height=640)
+  png(paste0(sample_name, "_clonalityBarplot.png"), type = "cairo", width=2400, height=640)
   bp <- barplot(datasetForBarplot, col=c("brown","blue","darkblue","red") ,  font.axis=2, beside=T, main=paste("Presence of clones in tumor", sample_name, ", estimated purity: ", max(as.numeric(found_CNVs_total[,6]))), ylim=c(0, 1.05 * maxheight), xlab="Subclones investigated", ylab="Length, MB")
   for (z in 1:ncol(datasetForBarplotNumber)) {
     for (v in 1:nrow(datasetForBarplotNumber)) {
@@ -1063,7 +1063,7 @@ plotLikelihoodLandscape <- function(datasetOfPuritiesCopies, addressOfPlot, foun
                                     local_purities, local_majorBAF, local_minorBAF, left_borders, right_borders, ends_of_chroms,
                                     local_majorBAF_second, local_minorBAF_second, local_purities_second) {
   colorsForCN = c(rgb(1,0,0,0.9), rgb(0.6470588, 0.1647059, 0.1647059, 0.9), rgb(0,0,1,0.9))
-  png(filename=addressOfPlot, width=2500, height=1000)
+  png(filename=addressOfPlot, type = "cairo", width=2500, height=1000)
   
   linesOnBarplot = list()
   orderOfNames = c(paste0("chr", 1:22), "chrX", "chrY")
diff --git a/somatic/somaticCallingProcedure.R b/somatic/somaticCallingProcedure.R
index 70fd3a0..448ef6d 100644
--- a/somatic/somaticCallingProcedure.R
+++ b/somatic/somaticCallingProcedure.R
@@ -721,8 +721,7 @@ somaticCalling <- function(matrixOfLogFold) {
           if (!finalIteration) {
             do.call(file.remove, list(list.files(paste0(folder_name, sample_name), full.names = TRUE)))
           }
-          png(filename = paste0(sample_name, "_clonality.png"),
-              width = 640, height = 640)
+          png(filename = paste0(sample_name, "_clonality.png"), type = "cairo", width = 640, height = 640)
           heatmap((matrixOfClonalityForPlotting), scale="none", Rowv = NA, Colv = NA, col=hmcols, main=sample_name)
           dev.off()