diff --git a/README.md b/README.md
index 351f422..f311c9c 100644
--- a/README.md
+++ b/README.md
@@ -142,6 +142,7 @@ The goal is to have enough details about each free tier so developers can choose
 - [**File transformation**](pages/file-transformation.md)
     - [Cloudinary](pages/file-transformation.md#cloudinary)
     - [Filestack](pages/file-transformation.md#filestack)
+    - [PDFSpark](pages/file-transformation.md#pdfspark)
 - [**Logging**](pages/logging.md)
     - [Application Insights](pages/logging.md#application-insights)
     - [Bugfender](pages/logging.md#bugfender)
diff --git a/pages/file-transformation.md b/pages/file-transformation.md
index 231b9f6..dceef3d 100644
--- a/pages/file-transformation.md
+++ b/pages/file-transformation.md
@@ -4,6 +4,7 @@
 
 - [Cloudinary](#cloudinary)
 - [Filestack](#filestack)
+- [PDFSpark](#pdfspark)
 
 <!-- /TOC -->
 
@@ -23,3 +24,12 @@
 * *Free tier*: 250 file uploads/month, 500 file transformations/month, 3GB bandwidth/month
 * *Pros*: image and video transformations, document file conversions, audio/video transcoding, free CDN, HTML widget, iOS SDK, tons of cloud storage integrations
 * *Limitations*: file upload size limited to 50 MB, free tier does not offer custom CNAME, S3 as file source is premium feature
+
+## PDFSpark
+
+[Home page](https://pdfspark.dev)
+
+* *Free tier*: Free HTML and URL to PDF conversion API with no authentication required
+* *Pros*: Convert any HTML content or URL to a high-quality PDF document via a simple API call; no API key or signup needed; supports custom page sizes and options
+* *Limitations*: Rate limited on the free tier
+* *Credit card required*: No