Merge PDFs via API
Editing PDFs has never been easier. Discover the power of our API, which brings precision and simplicity to your fingertips.
Test for free
Free to test
Fast to deploy
Powerful & secure
Superior features to power any use case
airSlate’s document generation API comes with advanced capabilities that other solutions lack, including dynamic table generation and displaying custom data hierarchies.
Full document generation for developers
Equip yourself with every tool you need to generate professional documents, including fillable fields, merge fields, templates, webhooks, and more.
Conditional document sections to serve multiple regions and languages
Generate region-specific documents and contracts that can be localized with specific legal text.
Document generation + eSignature
Generate pre-filled documents and send them for eSignature via the API.
Automate interactions with PDF documents in your app
Make on‑the‑go changes to PDFs, complete and share customer forms, collaborate across teams, and quickly create and update templates while safeguarding sensitive data.
PDF Editing
Templates
Document Management
PDF Converter
HTML to PDF
PDF Split
PDF Merge
PDF Compress
Password Protect
Watermark
Barcodes & QR Codes
Storage
PDF Editing
Embed a customizable PDF editor with signature, text, drawing, and annotation tools.
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Templates
Create reusable templates from documents and share them with multiple recipients.
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Document Management
Complete various actions with your PDFs:
- Upload a document
- Download a document
- Create a link to a document
- Add and delete document tags
HTML to PDF
Create a PDF document from an HTML page while retaining original formatting, images, and text.
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PDF Split
Split PDFs into multiple smaller documents for easy management and sharing.
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PDF Merge
Create a single PDF from several existing documents to avoid the hassle of opening and sending multiple documents.
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PDF Compress
Compress a PDF document to reduce its size and save disk space, improve file transfer times, and make it easier to share.
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Password Protect
Lock a PDF document with a password to prevent unauthorized users from accessing it.
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Watermark
Add a watermark to a PDF document. Customize the watermark text, orientation, opacity, size, and color.
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Barcodes & QR Codes
Generate high-quality QR code and barcode images. Choose from multiple types of supported barcodes depending on your region and use case.
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Storage
Access files directly from your preferred storage solution. The PDF API supports the following cloud storage services:
- Internal storage
- pdfFiller storage
- Amazon S3
- Google Drive
Embed advanced document generation tools in your app
API documentation
See our detailed API documentation to kickstart deployment.
Solution engineers
Get in touch with our tech experts to pick the right solution for your unique needs.
Why Document Automation Hub?
Deliver a rich user experience with airSlate’s award-winning technologies for document workflow automation.
Complete set of APIs
airSlate covers all your document automation needs ranging from document generation, conditional workflows, and smart forms to embedded PDF editing and eSignatures.
Cost-effective & scalable
Benefit from reduced development and maintenance costs with airSlate’s industry expertise, technical excellence, and scalable, usage-based pricing.
Developer-centric
Slash development cycles with airSlate’s clear API structure, detailed documentation, code examples, and a centralized dashboard to monitor API usage and reporting.
Enterprise-grade security and compliance
airSlate is committed to protecting your sensitive information by complying with global industry-leading security standards.
Watch DocGen API in action
Dynamic tables, nested lists, conditional sections, and more.
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Our user reviews speak for themselves
Shermaine Chloe G.
Employee Services Manager
“The best thing about airSlate is how they've made it very easy for people without a programming background to set up flows.”
Adam Beaty
Bullogic Wealth Management
“The ease of being able to create forms, PDFs, and other documents that link right into Salesforce has been instrumental in cutting down our processing times and increasing our customer satisfaction.”
Jim Royster
Cryo-Cell
“The Bots and workflow routing have been beneficial in allowing us to pull data from Salesforce, pre-fill documents, and then route those documents to various clients for signature.”
Guillermo Gameros
Advisor
“I would highly recommend airSlate to any business leader who is looking to increase efficiency in their workforce. My team and I have gained precious minutes in our prospecting time.”
Sam Ginzberg
Royal Care
“Great tool for automation! No need for dual entry eliminated the risk of errors. Completing paperwork and getting signatures turned into a breeze.”
Michael Moore
Transition Insurance Agency
“airSlate has been a great addition to our business! It integrates well with Salesforce allowing our team to seamlessly get custom documents ready for signatures within our Salesforce record!”
Julia Whitfield
Champ Plan Advisors
“Amazing Platform, customized for our special needs! Sophisticated, smart & cutting-edge!”
Menachem Tauber
Lubavitch Educational Center
“Automations that took me over 100 hours using Google sheets and scripts, can now be set up in airSlate in just 20-30 hours.”
Brian Del Terzo
Credilife
“There is no more all inclusive workflow solution like it!”
Mark Mc Nichol
In At The Deep End
“We’re getting information and data back from customers, and internal HR related documents quicker than ever before.”
Users on trusted review platforms recognize and approve airSlate solutions
Ready to kickstart your DocGen integration?
Create your sandbox account and test the API for free.
Learn more about automation APIs
Check our blog for expert insights, the latest updates, and helpful guides to get the most out of Document Automation Hub.
Forms API: An easy-to-use API for mobile-friendly web forms
Forms — ugh. Managing their workflows and data is a tedious and repetitive task. Fortunately, airSlate’s Document Automation Hub API enables developers to build end-to-end document automation services that support the inclusion of forms. The steps in the workflow involving forms can be integrated with steps involving PDFs and other types of documents.
Building an automated patient onboarding app with APIs
Healthcare organizations increasingly utilize document automation to manage and send critical patient communications. Healthcare professionals recognize that healthcare communications are much faster and cheaper when done electronically, using paperless document automation services that can track each step of a standard process. Healthcare document management software streamlines and automates your patient communication workflow, making it easier… Read more →
airSlate introduces Document Automation Hub: Enabling developers to access multiple APIs from a unified platform
airSlate, which offers an all-in-one document workflow automation solution, is introducing Document Automation Hub. With its help, developers can access, manage, and automate a comprehensive suite of document workflow APIs from one location. By seamlessly integrating PDF editing, document generation, data collection, eSignature, and forms, the Document Automation Hub aims to revolutionize the development process… Read more →
Automate eSignature and document workflows for purchase orders: A developer’s guide
At many companies, it’s common to have the ability to generate purchase orders from data housed in your CRM, ERP, or backend systems. What’s missing is automating the process of getting those documents signed and approved following your company’s business practices. You need a solution that offers seamless integration with your existing systems and is… Read more →
Document generation using API: Create and automate an NDA Flow for a new employee using simple API calls
The airSlate API empowers even non-tech-savvy users to integrate document generation functionality into their native software – websites, CRMs, and custom applications. Citizen developers can use well-documented endpoints to create pre-filled documents, distribute them among recipients, and save executed documents to the cloud.
How to build dynamic webforms using API: A step-by-step guide
Webforms are a versatile and valuable tool for businesses of all sizes. They help generate leads, increase conversions, and improve the customer experience. airSlate has developed Document Automation Hub, a comprehensive suite of APIs for organizations whose needs go beyond just eSignature and are looking to fully automate their document processes within their applications. Document… Read more →
New airSlate API to empower developers and IT teams to create customized, flexible data integrations
airSlate, which offers an all-in-one document workflow automation solution, is introducing a robust API.
signNow API empowers businesses to integrate eSignature features into any application
The intuitive and powerful signNow API by airSlate provides users with a seamless eSignature experience within any website, CRM, or custom app. As the demand for API technology is rapidly increasing, signNow reports that the number of signNow API users grew by 130% over the past year. ISVs of all sizes trust signNow and are… Read more →
Forms API: An easy-to-use API for mobile-friendly web forms
Forms — ugh. Managing their workflows and data is a tedious and repetitive task. Fortunately, airSlate’s Document Automation Hub API enables developers to build end-to-end document automation services that support the inclusion of forms. The steps in the workflow involving forms can be integrated with steps involving PDFs and other types of documents.
Building an automated patient onboarding app with APIs
Healthcare organizations increasingly utilize document automation to manage and send critical patient communications. Healthcare professionals recognize that healthcare communications are much faster and cheaper when done electronically, using paperless document automation services that can track each step of a standard process. Healthcare document management software streamlines and automates your patient communication workflow, making it easier… Read more →
Manage more with Merge PDFs functionality in your workflow
Truly productive work occurs when there are no distractions or hindrances blocking your path to document completion. With the Merge PDFs features of Document Automation Hub, you can have all your go-to document and editing capabilities embedded in your website or application. Utilize its robust document editing by seamlessly adding it into your workflow and handling Word or PDF files immediately.
Try more features, from simple editing to developing advanced interactive documents and directing document movement to the end.
How to get started and take advantage of the API-driven automation features and set up your Merge PDFs in Document Automation Hub:
- Visit our website and register for a free developer account.
- Once your account is established, log in to the Automation Hub Dashboard.
- Create your application within the platform and pick the authentication method most appropriate for your integration.
- Retrieve and use the provided authorization code and create your organization.
- Configure documents for signatures and data collection.
- Initiate signature workflows straight from your application, receiving real-time notifications on document progress.
Streamline your everyday editing tasks with our editing solutions for your working platform. Establish your developer account and unlock more opportunities for continuous productive work, enhancing both productivity and results. Make API requests and integrate tools. Review the technical documentation and use the suitable API endpoint to embed the PDF editing features within your application.
Questions & answers
Here is a list of the most common customer questions. If you can t find an answer to your question, please don't hesitate to each out to us.
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