diff --git a/services/web/app/coffee/Features/Compile/CompileController.coffee b/services/web/app/coffee/Features/Compile/CompileController.coffee
index 89fbc87e2e..a273d38a35 100755
--- a/services/web/app/coffee/Features/Compile/CompileController.coffee
+++ b/services/web/app/coffee/Features/Compile/CompileController.coffee
@@ -93,7 +93,12 @@ module.exports = CompileController =
 
 	getFileFromClsi: (req, res, next = (error) ->) ->
 		project_id = req.params.Project_id
-		CompileController.proxyToClsi(project_id, "/project/#{project_id}/output/#{req.params.file}", req, res, next)
+		build = req.params.build
+		if build?
+			url = "/project/#{project_id}/build/#{build}/output/#{req.params.file}"
+		else
+			url = "/project/#{project_id}/output/#{req.params.file}"
+		CompileController.proxyToClsi(project_id, url, req, res, next)
 
 	proxySync: (req, res, next = (error) ->) ->
 		CompileController.proxyToClsi(req.params.Project_id, req.url, req, res, next)
diff --git a/services/web/app/coffee/router.coffee b/services/web/app/coffee/router.coffee
index 854e852493..709b2541e1 100644
--- a/services/web/app/coffee/router.coffee
+++ b/services/web/app/coffee/router.coffee
@@ -113,6 +113,17 @@ module.exports = class Router
 				req.params = params
 				next()
 			), AuthorizationMiddlewear.ensureUserCanReadProject, CompileController.getFileFromClsi
+		# direct url access to output files for a specific build (query string not required)
+		webRouter.get  /^\/project\/([^\/]*)\/build\/([0-9a-f-]+)\/output\/(.*)$/,
+			((req, res, next) ->
+				params =
+					"Project_id": req.params[0]
+					"build":      req.params[1]
+					"file":       req.params[2]
+				req.params = params
+				next()
+			), AuthorizationMiddlewear.ensureUserCanReadProject, CompileController.getFileFromClsi
+
 		webRouter.delete "/project/:Project_id/output", AuthorizationMiddlewear.ensureUserCanReadProject, CompileController.deleteAuxFiles
 		webRouter.get "/project/:Project_id/sync/code", AuthorizationMiddlewear.ensureUserCanReadProject, CompileController.proxySync
 		webRouter.get "/project/:Project_id/sync/pdf", AuthorizationMiddlewear.ensureUserCanReadProject, CompileController.proxySync
diff --git a/services/web/public/coffee/ide/pdf/controllers/PdfController.coffee b/services/web/public/coffee/ide/pdf/controllers/PdfController.coffee
index 8a244495c6..0eab163e99 100644
--- a/services/web/public/coffee/ide/pdf/controllers/PdfController.coffee
+++ b/services/web/public/coffee/ide/pdf/controllers/PdfController.coffee
@@ -69,20 +69,28 @@ define [
 			else if response.status == "success"
 				$scope.pdf.view = 'pdf'
 				$scope.shouldShowLogs = false
-				# define the base url
-				$scope.pdf.url = "/project/#{$scope.project_id}/output/output.pdf?cache_bust=#{Date.now()}"
-				# add a query string parameter for the compile group
-				if response.compileGroup?
-					$scope.pdf.compileGroup = response.compileGroup
-					$scope.pdf.url = $scope.pdf.url + "&compileGroup=#{$scope.pdf.compileGroup}"
 				# make a cache to look up files by name
 				fileByPath = {}
 				for file in response.outputFiles
 					fileByPath[file.path] = file
-				# if the pdf file has a build number, pass it to the clsi
+				# prepare query string
+				qs = {}
+				# define the base url. if the pdf file has a build number, pass it to the clsi in the url
 				if fileByPath['output.pdf']?.build?
 					build = fileByPath['output.pdf'].build
-					$scope.pdf.url = $scope.pdf.url + "&build=#{build}"
+					$scope.pdf.url = "/project/#{$scope.project_id}/build/#{build}/output/output.pdf"
+					# no need to bust cache, build id is unique
+				else
+					$scope.pdf.url = "/project/#{$scope.project_id}/output/output.pdf"
+					qs = { cache_bust : "#{Date.now()}" }
+				# add a query string parameter for the compile group
+				if response.compileGroup?
+					$scope.pdf.compileGroup = response.compileGroup
+					qs.compileGroup = "#{$scope.pdf.compileGroup}"
+				# convert the qs hash into a query string and append it
+				qs_args = ("#{k}=#{v}" for k, v of qs)
+				$scope.pdf.qs = if qs_args.length then "?" + qs_args.join("&") else ""
+				$scope.pdf.url += $scope.pdf.qs
 
 				fetchLogs(fileByPath['output.log'])
 
@@ -101,8 +109,11 @@ define [
 					$scope.pdf.outputFiles.push file
 
 		fetchLogs = (outputFile) ->
-			qs = if outputFile?.build? then "?build=#{outputFile.build}" else ""
-			$http.get "/project/#{$scope.project_id}/output/output.log" + qs
+			if outputFile?.build?
+				logUrl = "/project/#{$scope.project_id}/build/#{outputFile.build}/output/output.log"
+			else
+				logUrl = "/project/#{$scope.project_id}/output/output.log"
+			$http.get logUrl
 				.success (log) ->
 					#console.log ">>", log
 					$scope.pdf.rawLog = log
@@ -124,8 +135,12 @@ define [
 										type: if entry.level == "error" then "error" else "warning"
 										text: entry.message
 									}
-					# Get the biber log and parse it too
-					$http.get "/project/#{$scope.project_id}/output/output.blg" + qs
+					# Get the biber log and parse it
+					if outputFile?.build?
+						biberLogUrl = "/project/#{$scope.project_id}/build/#{outputFile.build}/output/output.blg"
+					else
+						biberLogUrl = "/project/#{$scope.project_id}/output/output.blg"
+					$http.get biberLogUrl
 						.success (log) ->
 							window._s = $scope
 							biberLogEntries = BibLogParser.parse(log, {})