1 files changed, 12 insertions, 3 deletions
diff --git a/lib/docx/files.js b/lib/docx/files.js
index e17bd45..2d0963b 100644
--- a/lib/docx/files.js
+++ b/lib/docx/files.js
@@ -1,6 +1,7 @@
 var fs = require("fs");
 var url = require("url");
 var os = require("os");
+var resolvePath = require("path").resolve;
 
 var promises = require("../promises");
 
@@ -9,9 +10,9 @@ exports.Files = Files;
 exports.uriToPath = uriToPath;
 
 
-function Files() {
+function Files(base) {
     function read(uri, encoding) {
-        return readFile(uriToPath(uri), encoding);
+        return readFile(resolvePath(base, uriToPath(uri)), encoding);
     }
     
     return {
@@ -28,7 +29,7 @@ function uriToPath(uriString, platform) {
     }
     
     var uri = url.parse(uriString);
-    if (uri.protocol === "file:" && (!uri.host || uri.host === "localhost")) {
+    if (isLocalFileUri(uri) || isRelativeUri(uri)) {
         var path = decodeURIComponent(uri.path);
         if (platform === "win32" && /^\/[a-z]:/i.test(path)) {
             return path.slice(1);
@@ -39,3 +40,11 @@ function uriToPath(uriString, platform) {
         throw new Error("Could not convert URI to path: " + uriString);
     }
 }
+
+function isLocalFileUri(uri) {
+    return uri.protocol === "file:" && (!uri.host || uri.host === "localhost");
+}
+
+function isRelativeUri(uri) {
+    return !uri.protocol && !uri.host;
+}