Cloudmersive PDF API
What Cloudmersive PDF API is
Cloudmersive PDF API provides tools to create, convert, edit, and manage PDF files. It converts Word, Excel, and PowerPoint documents, including legacy DOC, XLS, and PPT formats, and can render HTML or URLs into PDFs for items such as invoices and reports. For existing files, it supports merging, splitting, copying, deleting, rotating, and reordering pages, plus creating and modifying annotations. The API can fill digital form fields and extract information from forms; deep-learning OCR extracts content from scanned PDFs. It can manage permissions, restrict printing or content extraction, and password-protect and encrypt PDFs. SDKs and samples are available for over 20 platforms and programming languages. Deployment choices include public cloud, managed instance, private cloud, PaaS, and government cloud; API and self-hosted platforms are listed. Cloudmersive says its stateless APIs do not retain payload data after a transaction. The free tier costs nothing and allows 600 calls monthly, with a 3.5 MB file limit and one call per second. Paid plans start at $19.99/mo.
Who it suits
It suits businesses and developers that need PDF operations or document conversion through an API, with multiple deployment options.
What it does well
- Converts Office files and HTML or URLs to PDF.
- Supports form filling, extraction, and scanned-PDF OCR.
- Offers SDKs and samples for over 20 platforms.
- Free tier provides 600 calls per month.
What to know first
- Free tier limits files to 3.5 MB.
- Free tier allows one call per second.
- Free tier includes limited support.
- Basic plan limits calls to 10,000 per month.
Limits
The Free Tier costs nothing and allows 600 calls per month, one call per second, and a maximum file size of 3.5 MB. It includes limited support and a North America data center. Basic costs $19.99 a month and allows 10,000 calls per month, two calls per second, and files up to 1 GB.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free Tier | $0.00/Month · 600 Calls/Month · 1 Calls/Second · 3.5 MB Maximum File Size · Limited support · North America data center · Evaluation plan, no expiration | Free |
| Basic | $19.99/Month · 10,000 Calls/Month · 2 Calls/Second · 1 GB Maximum File Size · Basic support (24 hours) · North America data centers | $19.99 a month |
| Business | $49.99/Month · 25,000 Calls/Month · 2 Calls/Second · 1 GB Maximum File Size · Silver support (12 hours) · North America and Germany data centers | $49.99 a month |
| Business Premier | $99.99/Month · 50,000 Calls/Month · 3 Calls/Second · 1 GB Maximum File Size · Silver support (12 hours) · 7 Days API Analytics · North America, Germany, and Australia data centers | $99.99 a month |
As cloudmersive.com lists them, read 28 Sept 2026. The maker's own page has the final word.
Getting started
- Visit https://cloudmersive.com/pdf-api.
- Choose the API or self-hosted platform and a listed deployment option.
- Select the Free Tier or a paid plan.
- Use the available native support, SDKs, or samples for your platform or language.
- Connect using API key or OAuth v2 authentication.
Verdict
Cloudmersive covers PDF conversion, page operations, forms, OCR, and security controls in one API offering. The free tier has call, rate, and file-size limits; paid plans start at $19.99/mo.
Questions
Is Cloudmersive PDF API free?
Yes. The Free Tier costs nothing, with 600 calls per month, one call per second, and a 3.5 MB maximum file size. Paid plans start at $19.99/mo.
What platforms does it support?
The listed platforms are API and self-hosted. Deployment options include public cloud, managed instance, private cloud, PaaS, and government cloud.
Which SDK languages are listed?
Named languages include C#, Java, Node.js, Python, PHP, .NET Core, Ruby, and Objective-C. Cloudmersive says native support, SDKs, and samples are available for more than 20 platforms and programming languages.
Does it integrate with other services?
Listed client libraries include Salesforce Apex, Postman, Zapier, Mendix, Power Automate, and Azure Logic Apps.
What security and data handling details are given?
Cloudmersive describes TLS 1.2 or later endpoints, API key or OAuth v2 authentication, and GDPR and CCPA support. It says stateless APIs do not store or retain payload data after a transaction.
Facts from Cloudmersive PDF API's own pages
- Data handling
- Cloudmersive says its stateless APIs do not store or retain payload data after a transaction is completed. · cloudmersive.com, 28 Sept 2026
- Deployment
- Deployment options listed include public cloud, managed instance, private cloud, PaaS, and government cloud. · cloudmersive.com, 28 Sept 2026
- Form handling
- The API can fill PDF digital form fields and extract information from PDF forms. · cloudmersive.com, 28 Sept 2026
- Headquarters
- Pleasanton, California, United States · cloudmersive.com, 28 Sept 2026
- HTML to PDF
- The API renders HTML or URLs as PDFs for documents such as invoices and reports. · cloudmersive.com, 28 Sept 2026
- Integrations
- Cloudmersive lists client libraries for Salesforce Apex, Postman, Zapier, Mendix, Power Automate, and Azure Logic Apps on its Document AI API page. · cloudmersive.com, 28 Sept 2026
- Intended users
- Cloudmersive describes its APIs as serving businesses and developers, and says small business plans target organizations with fewer than 50 employees. · cloudmersive.com, 28 Sept 2026
- OCR
- The product page says deep learning OCR can extract content from scanned PDFs. · cloudmersive.com, 28 Sept 2026
- Office conversion
- The API converts Word, Excel, and PowerPoint files, including legacy DOC, XLS, and PPT formats, to PDF. · cloudmersive.com, 28 Sept 2026
- PDF operations
- The API supports copying, merging, splitting, deleting, rotating, and reordering PDF pages, and creating or modifying annotations. · cloudmersive.com, 28 Sept 2026
- PDF processing
- The PDF APIs process, generate, modify, and manage permissions on PDFs. · cloudmersive.com, 28 Sept 2026
- PDF security controls
- PDF permissions can be managed to restrict printing or content extraction, and PDFs can be password protected and encrypted. · cloudmersive.com, 28 Sept 2026
- SDKs and samples
- The PDF API page states that native support, SDKs, and samples are available for over 20 platforms and programming languages. · cloudmersive.com, 28 Sept 2026
- Security
- The security page describes TLS 1.2 or later endpoints, API key or OAuth v2 authentication, and GDPR and CCPA support. · cloudmersive.com, 28 Sept 2026
- Support and SLAs
- The PDF API page directs customers to sales, while Cloudmersive says managed instances can include SLAs and its enterprise plans offer enhanced support and customer success. · cloudmersive.com, 28 Sept 2026
Where Cloudmersive PDF API stands on Freedom251
- PDF API Software#5 of 35