“Reliable Document Processing for Digital Signatures Across Latin America”
About TuFirma.Digital
TuFirma.Digital is a Chile-based SaaS platform that enables electronic and biometric signatures, document verification, and identity authentication across Latin America. The platform serves B2B clients, companies that manage large document volumes, from real estate agencies and HR departments to banks and notaries.
At its core, the platform allows users to upload documents, visualize PDFs, and sign online or via mobile, often including biometric validation such as face or fingerprint capture. The service is designed to simplify and secure the way organizations sign, manage, and validate documents under local digital signature laws.
How they measure success: Document processing time, upload completion rate, user satisfaction, conversion from free-to-paid accounts, and average signature completion time per session.
“Filestack turned our document processing bottleneck into a seamless, secure, and scalable asset pipeline for millions of digital signatures.”
Javier Hasbun
CEO, TuFirma.Digital
Before Filestack
Before integrating Filestack, TuFirma.Digital needed to handle sensitive documents and large PDF files while maintaining security, speed, and reliability across varying network conditions in Latin America.
Their existing system needed improvements in image quality consistency, rendering speed on mobile devices, and server-side processing efficiency. The team also needed to manage file security and transformations at scale with minimal infrastructure overhead.
Variable Image Quality
Document and image uploads arrived in varying quality levels, creating extra work for verification and processing.
Mobile Rendering Speed
Document preview and rendering needed to be faster, especially on mobile devices and in low-bandwidth environments.
Server-Side Processing Load
Server-side image manipulation drove up infrastructure costs and added latency to the signing flow.
File Security at Scale
Managing secure file transformations and compliance for sensitive documents added complexity.
The Solution
Why TuFirma.Digital Chose FilestackTuFirma.Digital evaluated alternatives including AWS Lambda with ImageMagick pipelines and Cloudinary. What made Filestack the clear choice: β Simplified API and SDK integration IntegrationFilestack was integrated into TuFirma.Digital’s signing platform via its File Picker and Transformation API. The implementation flow: 1. Documents and images used in signing and verification workflows are passed to Filestack for processing The team also leveraged webhooks to trigger post-processing events once transformations were complete. |  |
Results
Since implementing Filestack, TuFirma.Digital has seen measurable improvements across their platform:
β Document conversion and processing quality significantly improved
β Preview rendering time for PDFs materially reduced
β Support tickets related to file errors materially reduced
β Conversion rate from upload-to-sign completion significantly increased
Streamlined Document Conversion
Reliable format conversion and transformation reduced processing errors and improved the overall signing workflow.
Materially Faster PDF Rendering
Improved document preview and rendering times ensure smooth experiences on any device or network.
Higher Completion Rate
Upload-to-sign completion increased significantly, directly supporting business growth.
Document Upload Quality Improvement
Document and image uploads used in verification workflows previously had a high rate of issues due to large file sizes or incompatible formats. Users would upload high-resolution images from their phones in sizes that exceeded system limits.
Filestack’s automatic transformations convert uploads to uniform JPG/PNG formats at optimal sizes, resolving the majority of those upload issues. This single improvement streamlined the document processing workflow.
User Experience
Quick Integration
Integration was straightforward. The Filestack documentation and SDKs allowed the development team to deploy within days.
“We realized we could unify image handling and PDF conversion under one transformation API.”
Javier Hasbun
CEO, TuFirma.Digital
The team expected to need multiple services and weeks of integration. Instead, the full implementation happened in days on a single platform.
Most Valuable Features
Transformation API
On-the-fly image-to-PDF transformation with resize, rotate, and compress capabilitiesβall through simple URL parameters.
Consistent Output Quality
Predictable transformation results ensure documents render correctly across Chile, Peru, Colombia, and beyond.
Serving Customers Better
With reliable, fast document processing, TuFirma.Digital can now focus on building features that improve the signing experience.
“The on-the-fly image-to-PDF transformation capabilities have become valuable in parts of our document handling workflow.”
Javier Hasbun
CEO, TuFirma.Digital
Driving Business Growth
Filestack has played a meaningful role in helping TuFirma.Digital scale efficiently across Latin America. By improving reliability, reducing infrastructure costs, and accelerating user growth, it has proven to be a useful supporting component in their document processing stack.
Accelerated Growth
Improved user experience drove growth across Chile, Peru, and Colombia with faster onboarding and higher conversion rates.
Lower Infrastructure Costs
Offloading image processing and format conversion to Filestack replaced server-side transformation operations and reduced infrastructure overhead.
Secure File Handling
Policy-based access control and secure file handling support the file processing needs of digital signature platforms.
Looking Forward
As TuFirma.Digital expands deeper into the Latin American market, Filestack will continue to support their document processing needs. The team has plans to extend their platform’s capabilities while maintaining the reliability and performance that users expect.
Areas where Filestack will continue to add value:
β Document processing and format conversion
β Dynamic PDF stamping and annotation in real-time
β Enhanced mobile workflows for field agents and remote signers
Long term, Filestack will remain a useful supporting component in their document processing stack as they scale across the LatAm market, powering file transformations and rendering preparation.