diff --git a/chrome/content/zotero/preferences/preferences_search.js b/chrome/content/zotero/preferences/preferences_search.js
index 84469e7fae..2bc54a4bee 100644
--- a/chrome/content/zotero/preferences/preferences_search.js
+++ b/chrome/content/zotero/preferences/preferences_search.js
@@ -161,148 +161,126 @@ Zotero_Preferences.Search = {
 	 * Check available versions of PDF tools from server and prompt for installation
 	 * if a newer version is available
 	 */
-	checkPDFToolsDownloadVersion: function () {
+	checkPDFToolsDownloadVersion: Zotero.Promise.coroutine(function* () {
 		var url = Zotero.Fulltext.pdfToolsDownloadBaseURL + 'latest.json';
 		
 		// Find latest version for this platform
-		var self = this;
-		var sent = Zotero.HTTP.doGet(url, function (xmlhttp) {
-			try {
-				if (xmlhttp.status != 200) {
-					throw new Error("Unexpected response code " + xmlhttp.status);
-				}
-				
-				var platform = Zotero.platform.replace(/\s/g, '-');
-				var json = JSON.parse(xmlhttp.responseText);
-				var latestVersion = json[platform] || json['default'];
-				
-				Zotero.debug("Latest PDF tools version for " + platform + " is " + latestVersion);
-				
-				var converterIsRegistered = Zotero.Fulltext.pdfConverterIsRegistered();
-				var infoIsRegistered = Zotero.Fulltext.pdfInfoIsRegistered();
-				var bothRegistered = converterIsRegistered && infoIsRegistered;
-				
-				// On Windows, install if not installed or anything other than 3.02a
-				if (Zotero.isWin) {
-					var converterVersionAvailable = !converterIsRegistered
-						|| Zotero.Fulltext.pdfConverterVersion != '3.02a';
-					var infoVersionAvailable = !infoIsRegistered
-						|| Zotero.Fulltext.pdfInfoVersion != '3.02a';
-					var bothAvailable = converterVersionAvailable && infoVersionAvailable;
-					latestVersion = "3.02a";
-				}
-				// Install if not installed, version unknown, outdated, or
-				// Xpdf 3.02/3.04 (to upgrade to Poppler),
-				else {
-					var converterVersionAvailable = (!converterIsRegistered ||
-							Zotero.Fulltext.pdfConverterVersion == 'UNKNOWN'
-								|| latestVersion > Zotero.Fulltext.pdfConverterVersion
-								|| (!latestVersion.startsWith('3.02')
-									&& Zotero.Fulltext.pdfConverterVersion.startsWith('3.02'))
-								|| (!latestVersion.startsWith('3.02') && latestVersion != '3.04'
-									&& Zotero.Fulltext.pdfConverterVersion == '3.04'));
-					var infoVersionAvailable = (!infoIsRegistered ||
-							Zotero.Fulltext.pdfInfoVersion == 'UNKNOWN'
-								|| latestVersion > Zotero.Fulltext.pdfInfoVersion
-								|| (!latestVersion.startsWith('3.02')
-									&& Zotero.Fulltext.pdfInfoVersion.startsWith('3.02'))
-								|| (!latestVersion.startsWith('3.02') && latestVersion != '3.04'
-									&& Zotero.Fulltext.pdfInfoVersion == '3.04'));
-					var bothAvailable = converterVersionAvailable && infoVersionAvailable;
-				}
-				
-				// Up to date -- disable update button
-				if (!converterVersionAvailable && !infoVersionAvailable) {
-					var button = document.getElementById('pdftools-update-button');
-					button.setAttribute('label', Zotero.getString('zotero.preferences.update.upToDate'));
-					button.setAttribute('disabled', true);
-				}
-				// New version available -- display update prompt
-				else {
-					var ps = Components.classes["@mozilla.org/embedcomp/prompt-service;1"].
-							createInstance(Components.interfaces.nsIPromptService);
-					var buttonFlags = (ps.BUTTON_POS_0) * (ps.BUTTON_TITLE_IS_STRING)
-						+ (ps.BUTTON_POS_1) * (ps.BUTTON_TITLE_CANCEL);
-					
-					var msg = Zotero.getString('zotero.preferences.search.pdf.available'
-						+ ((converterIsRegistered || infoIsRegistered) ? 'Updates' : 'Downloads'),
-						[Zotero.platform, 'zotero.org']) + '\n\n';
-					
-					if (converterVersionAvailable) {
-						let tvp = Zotero.getString('zotero.preferences.search.pdf.toolVersionPlatform',
-							[Zotero.Fulltext.pdfConverterName, latestVersion]);
-						msg += '- ' + tvp + '\n';
-					}
-					if (infoVersionAvailable) {
-						let tvp = Zotero.getString('zotero.preferences.search.pdf.toolVersionPlatform',
-							[Zotero.Fulltext.pdfInfoName, latestVersion]);
-						msg += '- ' + tvp + '\n';
-					}
-					msg += '\n';
-					msg += Zotero.getString('zotero.preferences.search.pdf.zoteroCanInstallVersion'
-							+ (bothAvailable ? 's' : ''));
-					
-					var index = ps.confirmEx(null,
-						converterIsRegistered ?
-							Zotero.getString('general.updateAvailable') : '',
-						msg,
-						buttonFlags,
-						converterIsRegistered ?
-							Zotero.getString('general.upgrade') :
-							Zotero.getString('general.install'),
-						null, null, null, {});
-					
-					if (index == 0) {
-						document.getElementById('pdftools-update-button').disabled = true;
-						var str = Zotero.getString('zotero.preferences.search.pdf.downloading');
-						document.getElementById('pdftools-update-button').setAttribute('label', str);
-						
-						if (converterVersionAvailable && infoVersionAvailable) {
-							Zotero.Fulltext.downloadPDFTool('converter', latestVersion, function (success) {
-								if (!success) {
-									self.onPDFToolsDownloadError("Error downloading pdftotext");
-									return;
-								}
-								Zotero.Fulltext.downloadPDFTool('info', latestVersion, function (success) {
-									if (!success) {
-										self.onPDFToolsDownloadError("Error downloading pdfinfo");
-										return;
-									}
-									self.updatePDFToolsStatus();
-								});
-							});
-						}
-						else if (converterVersionAvailable) {
-							Zotero.Fulltext.downloadPDFTool('converter', latestVersion, function (success) {
-								if (!success) {
-									self.onPDFToolsDownloadError("Error downloading pdftotext");
-									return;
-								}
-								self.updatePDFToolsStatus();
-							});
-						}
-						else {
-							Zotero.Fulltext.downloadPDFTool('info', latestVersion, function (success) {
-								if (!success) {
-									self.onPDFToolsDownloadError("Error downloading pdfinfo");
-									return;
-								}
-								self.updatePDFToolsStatus();
-							});
-						}
-					}
-				}
+		try {
+			var xmlhttp = yield Zotero.HTTP.request("GET", url, { successCodes: [200, 404] });
+			
+			if (xmlhttp.status == 404) {
+				throw 404;
 			}
-			catch (e) {
-				self.onPDFToolsDownloadError(e);
+			
+			var platform = Zotero.platform.replace(/\s/g, '-');
+			var json = JSON.parse(xmlhttp.responseText);
+			var latestVersion = json[platform] || json['default'];
+			
+			Zotero.debug("Latest PDF tools version for " + platform + " is " + latestVersion);
+			
+			var converterIsRegistered = Zotero.Fulltext.pdfConverterIsRegistered();
+			var infoIsRegistered = Zotero.Fulltext.pdfInfoIsRegistered();
+			var bothRegistered = converterIsRegistered && infoIsRegistered;
+			
+			// On Windows, install if not installed or anything other than 3.02a
+			if (Zotero.isWin) {
+				var converterVersionAvailable = !converterIsRegistered
+					|| Zotero.Fulltext.pdfConverterVersion != '3.02a';
+				var infoVersionAvailable = !infoIsRegistered
+					|| Zotero.Fulltext.pdfInfoVersion != '3.02a';
+				var bothAvailable = converterVersionAvailable && infoVersionAvailable;
+				latestVersion = "3.02a";
 			}
-		});
-		
-		// Browser is offline
-		if (!sent) {
-			this.onPDFToolsDownloadError();
+			// Install if not installed, version unknown, outdated, or
+			// Xpdf 3.02/3.04 (to upgrade to Poppler),
+			else {
+				var converterVersionAvailable = (!converterIsRegistered ||
+						Zotero.Fulltext.pdfConverterVersion == 'UNKNOWN'
+							|| latestVersion > Zotero.Fulltext.pdfConverterVersion
+							|| (!latestVersion.startsWith('3.02')
+								&& Zotero.Fulltext.pdfConverterVersion.startsWith('3.02'))
+							|| (!latestVersion.startsWith('3.02') && latestVersion != '3.04'
+								&& Zotero.Fulltext.pdfConverterVersion == '3.04'));
+				var infoVersionAvailable = (!infoIsRegistered ||
+						Zotero.Fulltext.pdfInfoVersion == 'UNKNOWN'
+							|| latestVersion > Zotero.Fulltext.pdfInfoVersion
+							|| (!latestVersion.startsWith('3.02')
+								&& Zotero.Fulltext.pdfInfoVersion.startsWith('3.02'))
+							|| (!latestVersion.startsWith('3.02') && latestVersion != '3.04'
+								&& Zotero.Fulltext.pdfInfoVersion == '3.04'));
+				var bothAvailable = converterVersionAvailable && infoVersionAvailable;
+			}
+			
+			// Up to date -- disable update button
+			if (!converterVersionAvailable && !infoVersionAvailable) {
+				var button = document.getElementById('pdftools-update-button');
+				button.setAttribute('label', Zotero.getString('zotero.preferences.update.upToDate'));
+				button.setAttribute('disabled', true);
+				return;
+			}
+			
+			// New version available -- display update prompt
+			var ps = Components.classes["@mozilla.org/embedcomp/prompt-service;1"].
+					createInstance(Components.interfaces.nsIPromptService);
+			var buttonFlags = (ps.BUTTON_POS_0) * (ps.BUTTON_TITLE_IS_STRING)
+				+ (ps.BUTTON_POS_1) * (ps.BUTTON_TITLE_CANCEL);
+			
+			var msg = Zotero.getString('zotero.preferences.search.pdf.available'
+				+ ((converterIsRegistered || infoIsRegistered) ? 'Updates' : 'Downloads'),
+				[Zotero.platform, 'zotero.org']) + '\n\n';
+			
+			if (converterVersionAvailable) {
+				let tvp = Zotero.getString('zotero.preferences.search.pdf.toolVersionPlatform',
+					[Zotero.Fulltext.pdfConverterName, latestVersion]);
+				msg += '- ' + tvp + '\n';
+			}
+			if (infoVersionAvailable) {
+				let tvp = Zotero.getString('zotero.preferences.search.pdf.toolVersionPlatform',
+					[Zotero.Fulltext.pdfInfoName, latestVersion]);
+				msg += '- ' + tvp + '\n';
+			}
+			msg += '\n';
+			msg += Zotero.getString('zotero.preferences.search.pdf.zoteroCanInstallVersion'
+					+ (bothAvailable ? 's' : ''));
+			
+			var index = ps.confirmEx(null,
+				converterIsRegistered ?
+					Zotero.getString('general.updateAvailable') : '',
+				msg,
+				buttonFlags,
+				converterIsRegistered ?
+					Zotero.getString('general.upgrade') :
+					Zotero.getString('general.install'),
+				null, null, null, {});
+			
+			if (index != 0) {
+				return;
+			}
+			
+			document.getElementById('pdftools-update-button').disabled = true;
+			var str = Zotero.getString('zotero.preferences.search.pdf.downloading');
+			document.getElementById('pdftools-update-button').setAttribute('label', str);
+			
+			if (converterVersionAvailable) {
+				yield Zotero.Fulltext.downloadPDFTool('converter', latestVersion)
+				.catch(function (e) {
+					Zotero.logError(e);
+					throw new Error("Error downloading pdftotext");
+				});
+			}
+			if (infoVersionAvailable) {
+				yield Zotero.Fulltext.downloadPDFTool('info', latestVersion)
+				.catch(function (e) {
+					Zotero.logError(e);
+					throw new Error("Error downloading pdfinfo");
+				});
+			}
+			this.updatePDFToolsStatus();
 		}
-	},
+		catch (e) {
+			this.onPDFToolsDownloadError(e);
+		}
+	}),
 	
 	
 	onPDFToolsDownloadError: function (e) {
@@ -311,17 +289,11 @@ Zotero_Preferences.Search = {
 				Zotero.Fulltext.pdfToolsName) + ' '
 				+ Zotero.getString('zotero.preferences.search.pdf.viewManualInstructions');
 		}
-		else if (e) {
+		else {
 			Components.utils.reportError(e);
 			var str = Zotero.getString('zotero.preferences.search.pdf.toolsDownloadError', Zotero.Fulltext.pdfToolsName)
 				+ ' ' + Zotero.getString('zotero.preferences.search.pdf.tryAgainOrViewManualInstructions');
 		}
-		else {
-			var info = Components.classes["@mozilla.org/xre/app-info;1"]
-						 .getService(Components.interfaces.nsIXULAppInfo);
-			var browser = info.name; // Returns "Firefox" for Firefox
-			var str = Zotero.getString('general.browserIsOffline', browser);
-		}
 		
 		var ps = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
 			.createInstance(Components.interfaces.nsIPromptService);
diff --git a/chrome/content/zotero/xpcom/file.js b/chrome/content/zotero/xpcom/file.js
index 66b43f6dd6..413ae8e35f 100644
--- a/chrome/content/zotero/xpcom/file.js
+++ b/chrome/content/zotero/xpcom/file.js
@@ -355,7 +355,7 @@ Zotero.File = new function(){
 			));
 		}
 		
-		// Create a stream for async stream copying
+		// Convert text data to stream
 		if(!(data instanceof Components.interfaces.nsIInputStream)) {
 			var converter = Components.classes["@mozilla.org/intl/scriptableunicodeconverter"].
 					createInstance(Components.interfaces.nsIScriptableUnicodeConverter);
@@ -363,9 +363,9 @@ Zotero.File = new function(){
 			data = converter.convertToInputStream(data);
 		}
 		
-		var deferred = Zotero.Promise.defer(),
-			ostream = FileUtils.openSafeFileOutputStream(path);
-		NetUtil.asyncCopy(data, ostream, function(inputStream, status) {
+		var deferred = Zotero.Promise.defer();
+		var os = FileUtils.openSafeFileOutputStream(new FileUtils.File(path));
+		NetUtil.asyncCopy(data, os, function(inputStream, status) {
 			if (!Components.isSuccessCode(status)) {
 				deferred.reject(new Components.Exception("File write operation failed", status));
 				return;
@@ -376,6 +376,23 @@ Zotero.File = new function(){
 	};
 	
 	
+	this.download = Zotero.Promise.coroutine(function* (uri, path) {
+		var msg = "Saving " + (uri.spec ? uri.spec : uri) + " to " + (path.path ? path.path : path);
+		
+		var deferred = Zotero.Promise.defer();
+		NetUtil.asyncFetch(uri, function (is, status, request) {
+			if (!Components.isSuccessCode(status)) {
+				Zotero.logError(status);
+				deferred.reject(new Error("Download failed with status " + status));
+				return;
+			}
+			deferred.resolve(is);
+		});
+		var is = yield deferred.promise;
+		yield Zotero.File.putContentsAsync(path, is);
+	});
+	
+	
 	/**
 	 * Delete a file if it exists, asynchronously
 	 *
diff --git a/chrome/content/zotero/xpcom/fulltext.js b/chrome/content/zotero/xpcom/fulltext.js
index 64bdc34784..df1c01a2ae 100644
--- a/chrome/content/zotero/xpcom/fulltext.js
+++ b/chrome/content/zotero/xpcom/fulltext.js
@@ -30,7 +30,7 @@ Zotero.Fulltext = new function(){
 	this.pdfInfoIsRegistered = pdfInfoIsRegistered;
 	this.isCachedMIMEType = isCachedMIMEType;
 	
-	this.__defineGetter__("pdfToolsDownloadBaseURL", function() { return 'https://www.zotero.org/download/xpdf/'; });
+	this.pdfToolsDownloadBaseURL = 'https://www.zotero.org/download/xpdf/';
 	this.__defineGetter__("pdfToolsName", function() { return 'Xpdf'; });
 	this.__defineGetter__("pdfToolsURL", function() { return 'http://www.foolabs.com/xpdf/'; });
 	this.__defineGetter__("pdfConverterName", function() { return 'pdftotext'; });
@@ -132,129 +132,99 @@ Zotero.Fulltext = new function(){
 	/*
 	 * Download and install latest PDF tool
 	 */
-	this.downloadPDFTool = function (tool, version, callback) {
-		try {
-			var ioService = Components.classes["@mozilla.org/network/io-service;1"]
-				.getService(Components.interfaces.nsIIOService);
-			
-			if (tool == 'converter') {
-				var fileName = this.pdfConverterFileName;
+	this.downloadPDFTool = Zotero.Promise.coroutine(function* (tool, version) {
+		var ioService = Components.classes["@mozilla.org/network/io-service;1"]
+			.getService(Components.interfaces.nsIIOService);
+		
+		if (tool == 'converter') {
+			var fileName = this.pdfConverterFileName;
+		}
+		else {
+			var fileName = this.pdfInfoFileName;
+		}
+		
+		var spec = this.pdfToolsDownloadBaseURL + version + "/" + fileName;
+		var uri = ioService.newURI(spec, null, null);
+		var tmpFile = OS.Path.join(Zotero.getTempDirectory().path, fileName);
+		
+		yield Zotero.File.download(uri, tmpFile);
+		
+		var fileInfo = yield OS.File.stat(tmpFile);
+		
+		// Delete if too small, since a 404 might not be detected above
+		if (fileInfo.size < 50000) {
+			let msg = tmpFile + " is too small -- deleting";
+			Zotero.logError(msg);
+			try {
+				yield OS.File.remove(tmpFile);
 			}
-			else {
-				var fileName = this.pdfInfoFileName;
+			catch (e) {
+				Zotero.logError(e);
 			}
-			
-			var spec = this.pdfToolsDownloadBaseURL + version + "/" + fileName;
-			var uri = ioService.newURI(spec, null, null);
-			
-			var file = Zotero.getTempDirectory();
-			file.append(fileName);
-			
-			Components.utils.import("resource://gre/modules/NetUtil.jsm");
-			Components.utils.import("resource://gre/modules/FileUtils.jsm");
-			
-			Zotero.debug("Saving " + uri.spec + " to " + file.path);
-			NetUtil.asyncFetch(uri, function (is, status) {
-				if (!Components.isSuccessCode(status)) {
-					Zotero.debug(status, 1);
-					Components.utils.reportError(status);
-					if (callback) {
-						callback(false);
-					}
-					return;
-				}
-				
-				Zotero.File.putContentsAsync(file, is)
-				.then(function () {
-					// Delete if too small, since a 404 might not be detected above
-					if (file.fileSize < 50000) {
-						var msg = file.path + " is too small -- deleting";
-						Zotero.debug(msg, 1);
-						Components.utils.reportError(msg);
-						try {
-							file.remove(false);
-						}
-						catch (e) {
-							Zotero.debug(e, 1);
-							Components.utils.reportError(e);
-						}
-						if (callback) {
-							callback(false);
-						}
-						return;
-					}
-					
-					var scriptExt = _getScriptExtension();
-					// On Windows, write out script to hide pdftotext console window
-					// TEMP: disabled
-					if (false && tool == 'converter') {
-						if (Zotero.isWin) {
-							var content = Zotero.File.getContentsFromURL('resource://zotero/hide.' + scriptExt);
-							var scriptFile = Zotero.getTempDirectory();
-							scriptFile.append('pdftotext.' + scriptExt);
-							Zotero.File.putContents(scriptFile, content);
-						}
-					}
-					// Write out output redirection script for pdfinfo
-					// TEMP: disabled on Windows
-					else if (!Zotero.isWin && tool == 'info') {
-						var content = Zotero.File.getContentsFromURL('resource://zotero/redirect.' + scriptExt);
-						var scriptFile = Zotero.getTempDirectory();
-						scriptFile.append('pdfinfo.' + scriptExt);
-						Zotero.File.putContents(scriptFile, content);
-					}
-					
-					// Set permissions to 755
-					if (Zotero.isMac) {
-						file.permissions = 33261;
-						if (scriptFile) {
-							scriptFile.permissions = 33261;
-						}
-					}
-					else if (Zotero.isLinux) {
-						file.permissions = 493;
-						if (scriptFile) {
-							scriptFile.permissions = 493;
-						}
-					}
-					
-					var destDir = Zotero.getZoteroDirectory()
-					// Move redirect script and executable into data dir
-					if (scriptFile) {
-						scriptFile.moveTo(destDir, null);
-					}
-					file.moveTo(destDir, null);
-					
-					// Write the version number to a file
-					var versionFile = destDir.clone();
-					versionFile.append(fileName + '.version');
-					// TEMP
-					if (Zotero.isWin) {
-						version = '3.02a';
-					}
-					Zotero.File.putContents(versionFile, version + '');
-					
-					Zotero.Fulltext.registerPDFTool(tool);
-					
-					if (callback) {
-						callback(true);
-					}
-				})
-				.catch(function (e) {
-					Zotero.debug(e, 1);
-					Components.utils.reportError(e);
-					callback(false);
-				});
+			throw new Error(msg);
+		}
+		
+		var scriptExt = _getScriptExtension();
+		// On Windows, write out script to hide pdftotext console window
+		// TEMP: disabled
+		if (false && tool == 'converter') {
+			if (Zotero.isWin) {
+				let content = yield Zotero.File.getContentsFromURLAsync(
+					'resource://zotero/hide.' + scriptExt
+				);
+				var tmpScriptFile = OS.Path.join(
+					Zotero.getTempDirectory().path,
+					'pdftotext.' + scriptExt
+				);
+				yield Zotero.File.putContentsAsync(tmpScriptFile, content);
+			}
+		}
+		// Write out output redirection script for pdfinfo
+		// TEMP: disabled on Windows
+		else if (!Zotero.isWin && tool == 'info') {
+			let content = yield Zotero.File.getContentsFromURLAsync(
+				'resource://zotero/redirect.' + scriptExt
+			);
+			var tmpScriptFile = OS.Path.join(
+				Zotero.getTempDirectory().path,
+				'pdfinfo.' + scriptExt
+			);
+			yield Zotero.File.putContentsAsync(tmpScriptFile, content);
+		}
+		
+		// Set permissions to 755
+		if (Zotero.isMac || Zotero.isLinux) {
+			yield OS.File.setPermissions(tmpFile, {
+				unixMode: 0o755
 			});
-		}
-		catch (e) {
-			Zotero.debug(e, 1);
-			Components.utils.reportError(e);
-			if (callback) {
-				callback(false);
+			if (tmpScriptFile) {
+				yield OS.File.setPermissions(tmpScriptFile, {
+					unixMode: 0o755
+				});
 			}
 		}
-	};
+		
+		var destDir = Zotero.getZoteroDirectory()
+		// Move redirect script and executable into data dir
+		if (tmpScriptFile) {
+			yield OS.File.move(
+				tmpScriptFile,
+				OS.Path.join(destDir.path, OS.Path.basename(tmpScriptFile))
+			);
+		}
+		yield OS.File.move(tmpFile, OS.Path.join(destDir.path, fileName));
+		
+		// Write the version number to a file
+		var versionFile = destDir.clone();
+		versionFile.append(fileName + '.version');
+		// TEMP
+		if (Zotero.isWin) {
+			version = '3.02a';
+		}
+		yield Zotero.File.putContentsAsync(versionFile, version + '');
+		
+		yield Zotero.Fulltext.registerPDFTool(tool);
+	});
 	
 	
 	/*
diff --git a/test/tests/fulltextTest.js b/test/tests/fulltextTest.js
new file mode 100644
index 0000000000..1c54f43fcd
--- /dev/null
+++ b/test/tests/fulltextTest.js
@@ -0,0 +1,71 @@
+describe("Zotero.Fulltext", function () {
+	describe("#downloadPDFTool()", function () {
+		var originalBaseURL;
+		before(function* () {
+			originalBaseURL = Zotero.Fulltext.pdfToolsDownloadBaseURL;
+		})
+		after(function () {
+			Zotero.Fulltext.pdfToolsDownloadBaseURL = originalBaseURL;
+		})
+		
+		it("should install the PDF tools", function* () {
+			var version = "3.04";
+			var dataDir = Zotero.getZoteroDirectory().path;
+			var execFileName = 'pdfinfo-' + Zotero.platform;
+			var execContents = new Array(50001).join('a');
+			var execPath = OS.Path.join(dataDir, execFileName);
+			var versionFileName = execFileName + '.version';
+			var versionPath = OS.Path.join(dataDir, versionFileName);
+			var scriptExt = Zotero.isWin ? 'vbs' : 'sh';
+			var scriptPath = OS.Path.join(dataDir, 'pdfinfo.' + scriptExt);
+			var scriptContents = yield Zotero.File.getContentsFromURLAsync(
+				'resource://zotero/redirect.' + scriptExt
+			);
+			
+			// Delete existing files
+			try {
+				yield OS.File.remove(execPath);
+			}
+			catch (e) {}
+			try {
+				yield OS.File.remove(versionPath);
+			}
+			catch (e) {}
+			try {
+				yield OS.File.remove(scriptPath);
+			}
+			catch (e) {}
+			
+			var tmpDir = Zotero.getTempDirectory();
+			// Create temp version directory
+			var tmpVersionDir = OS.Path.join(tmpDir.path, version);
+			yield OS.File.makeDir(tmpVersionDir);
+			// Create dummy executable file to download
+			var tmpExecPath = OS.Path.join(tmpVersionDir, execFileName);
+			yield Zotero.File.putContentsAsync(tmpExecPath, execContents);
+			
+			// Override the download URL with a file URL for the temp directory
+			Zotero.Fulltext.pdfToolsDownloadBaseURL = OS.Path.toFileURI(tmpDir.path) + "/";
+			
+			yield Zotero.Fulltext.downloadPDFTool('info', version);
+			
+			assert.ok(Zotero.Fulltext.pdfInfoIsRegistered());
+			assert.equal(
+				(yield Zotero.File.getContentsAsync(execPath)),
+				execContents
+			);
+			assert.equal((yield OS.File.stat(execPath)).unixMode, 0o755);
+			assert.equal(
+				(yield Zotero.File.getContentsAsync(versionPath)),
+				version
+			);
+			assert.equal(
+				(yield Zotero.File.getContentsAsync(scriptPath)),
+				scriptContents
+			);
+			assert.equal((yield OS.File.stat(scriptPath)).unixMode, 0o755);
+			
+			yield OS.File.removeDir(tmpVersionDir);
+		})
+	})
+})