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compliance ISO 19005 pdf/a validate validator

How to Programmatically Validate PDF/A Compliance: 4 Methods Compared

Validate PDF/A files programmatically with code examples in C#, Python, Java, and Node.js. Compare veraPDF, Adobe Preflight, and ConvertAPI PDF/A validators.

2026 May 05 Tomas

c# integration office

How to Convert DOCX to PDF in C#: 4 Methods Compared (2026 Guide)

Learn how to convert DOCX to PDF in C# with four proven methods. Compare Microsoft Interop, Open XML, ConvertAPI, and Aspose with code examples, benchmarks, and edge case solutions.

2026 Mar 26 Paulius

Inside ConvertAPI’s Security and Compliance Architecture

A transparent look at ConvertAPI’s security architecture - from in-memory processing to strict isolation, ISO 27001, SOC 2 certification GDPR compliance, and zero data persistence.

2026 Mar 24 Henrikas

How to Add Page Numbers to PDF

Learn how to add page numbers to PDF files programmatically in PHP, C#, and Node.js using the Text Watermark API with %PAGE% and %PAGES% variables and precise positioning.

2026 Jan 27 Paulius

api automation c# pdf

Why Your Business Needs PDF/A Conversion with E-Invoice Support

In today's digital-first business environment, document archiving isn't just about storage - it's about compliance, accessibility, and future-proofing your critical business records. If your organization handles invoices, contracts, or any documents requiring long-term preservation, the shift to PDF/A format isn't optional—it's essential.

2025 Oct 21 Tomas

c# pdf

How to Merge PDF Files in C# (.NET) with ConvertAPI – Examples & Tutorial

Learn how to merge PDF files in C# using ConvertAPI. Step-by-step tutorial with code examples for .NET developers. Covers PDF merging, bookmarks, page orientation, page size, and more.

2025 Sep 24 Tomas

c# pdf

Flatten PDF in C# – Lock Forms, Annotations, and Text with ConvertAPI

Learn how to flatten PDF in C# with ConvertAPI. Lock form fields, flatten annotations, and protect text while preserving quality in your PDF files.

2025 Aug 13 Tomas

ai api integration

Introducing the ConvertAPI ChatGPT Plugin

The ConvertAPI ChatGPT plugin is now live! Easily convert files like DOCX, PDF, and images within ChatGPT - no external tools needed. Try it free in the GPT Store!

2025 Aug 08 Paulius

infrastructure

Washington, DC Datacenter Upgrade – 2× Faster Conversions

We’ve overhauled our Washington, DC datacenter hardware: latest-gen CPUs, ultra-fast NVMe SSDs, an additional bare-metal server, and dual network paths to achieve up to 2× faster conversion speeds, 30% lower latency, and rock-solid uptime.

2025 May 28 Tomas

c# .net pdf

How to Split PDF in C#: Step-by-Step Guide with Working Code

Split PDF files in C# effortlessly with ConvertAPI. This hands-on guide covers splitting by pages, ranges, patterns, and bookmarks - complete with copy-paste-ready code.

2025 May 16 Tomas

ai automation pdf

Extract Data from PDF Documents Using AI

Harness the power of AI to extract crucial data from documents like invoices, receipts, and forms with accuracy and speed.

2025 Apr 28 Paulius

integration powershell

Automate File Conversions in PowerShell

Learn how to convert files to PDF programmatically using ConvertAPI and PowerShell. This guide includes a step-by-step script for automation, error handling, and setup, making it easy to streamline file conversion tasks on Windows systems.

2024 Nov 18 Tomas

automation n8n

Automate File Conversions Using n8n.io

Discover how to seamlessly integrate the ConvertAPI service with n8n.io for efficient document conversions. This detailed guide includes setup instructions and practical examples to optimize your n8n workflows with robust document processing features.

2024 Jun 25 Jonas

automation bubble

Bubble.io Document Conversion Guide

Learn how to use the ConvertAPI plugin for Bubble.io to handle document conversions effortlessly. This comprehensive guide covers installation, setup, and practical examples to enhance your Bubble applications with powerful document processing capabilities.

2024 Jun 12 Jonas

integration java

Document and file conversion library for Java

ConvertAPI provides a flexible solution for building custom conversion flows. You can process your files by applying multiple conversions and compress the result PDF afterward. This best-practice-driven REST API approach improves performance and gives you full control over file compression levels and parameters.

2024 Mar 08 Shanika

feature new pdf

Flatten or rasterize a PDF to make it read-only?

Looking to make your PDF document read-only? We provide two ways to achieve this - Flattening and Rasterizing. In this article, we will discuss which method is most suitable for you to protect your PDF from easy editing or manipulation.

2024 Jan 08 Kostas

new office pdf

Generate DOCX and PDF from code using a Word template

Agreements, invoices, and NDAs take time and resources. Automate most manual work by generating documents from a DOCX template combined with a JSON object containing your data.

2023 Dec 22 Kostas

c# infrastructure

Asynchronous File Conversion Using Polling in C#

Explore our comprehensive guide on how to leverage ConvertAPI for asynchronous file conversions in C#. Learn to submit, track, and save your conversion tasks in a non-blocking manner, enhancing your .NET application's performance.

2023 Nov 30 Tomas

new office pdf

Convert PDF files to editable MS Office documents

PDF to MS Office converters are incredibly useful tools that allow our customers to unlock the full potential of PDF documents. With the ability to convert PDFs to MS Office formats, you can easily create and modify professional-looking documents that were previously inaccessible for editing.

2023 Sep 22 Kostas

infrastructure

ConvertAPI GeoDNS and load balancing

We provide a well-thought-out approach to addressing the challenges associated with file conversion REST APIs. An intelligent load balancing solution incorporating GeoDNS with Kubernetes cluster allows us to provide a fast and reliable file conversion REST API service without extra latency.

2023 Sep 01 Jonas

infrastructure

Temporary file storage techniques and benefits

Temporary file storage allows performing multiple parallel conversions without performance loss and empowers conversion chaining to create a seamless workflow without redundant file transferring back and forth.

2023 Aug 25 Jonas

new pdf

Remove pages from a PDF programatically

The Delete PDF Pages API is a specific endpoint provided by ConvertAPI to facilitate the removal of unwanted pages from PDF documents. With just a few API requests, you can automate the process of deleting pages, saving you valuable time and effort.

2023 Jul 18 Kostas

feature integration

Page Breaks in HTML to PDF Conversion

Our HTML to PDF converter provides an alternative solution for generating beautiful PDFs with dynamic content layouts, without the need to learn new tools or libraries. Leveraging the battle-tested HTML and CSS, you can easily utilize your existing knowledge in these technologies to create stunning PDFs.

2023 Jul 05 Jonas

infrastructure

HTTP Request and Response Content Types - Making the Right Choice

HTTP request and response content types are used in the Hypertext Transfer Protocol (HTTP) to specify the format of the data being sent or received. They help servers and clients understand how to interpret the exchanged information.

2023 Jun 16 Jonas

infrastructure

Big news for our Northern American users

We are constantly expanding our server infrastructure to meet our customer's needs. This time, we have great news for our North American clients. Our new server launched in Toronto will facilitate Canada, Alaska, and some Northern regions of the USA.

2022 Oct 13 Kostas

automation zapier

How to process a multi-file conversion result on Zapier?

The ConvertAPI app on Zapier is becoming highly popular, and many customers are extending their workflows using our service that offers a broad file type conversion support. It is super easy to set up; however, there are some nuances that may be taken into consideration to take full advantage of the service. In this article, we will explain how to process a multi-file response returned of the ConvertAPI conversion.

2022 Oct 04 Kostas

integration javascript pdf

Create online PDF converter using JS

Online PDF converters are becoming extremely popular and useful tools these days. In this article, we will demonstrate an example of how to create an online PDF converter using only HTML, CSS, and JavaScript.

2022 Apr 12 Kostas

improvements office

Convert DOCX to HTML programmatically with inlined images

Did you know that web pages can be generated from an MS Office Word document? ConvertAPI allows you to convert DOCX to HTML that can be viewed inside a browser without installing any additional software. In this article we present a new feature, that allows embedding all images into a single HTML file.

2022 Feb 24 Kostas

api office php

Convert MS Office documents to PDF using PHP

ConvertAPI helps convert MS Office documents to many file types including PDF. In this article we will show how to quickly implement DOCX, XLSX and PPTX conversions to PDF into your projects using our SDK for PHP programming language.

2022 Feb 16 Kostas

feature improvements office

Save Excel as CSV without losing Unicode characters

Exporting data from your Excel file to CSV can get tricky, especially if your data contains special unicode characters. In this article, we will explain how to export your XLSX file to CSV using Microsoft Office Excel Interop while preserving the UTF-8 encoded characters.

2021 Nov 16 Kostas

infrastructure

New location discovered - Sydney!

We are happy to announce the expansion of our server infrastructure to Sydney. It will facilitate our customers across the Oceanian region including Australia and New Zealand and also serves as a redundant server as a part of our disaster recovery plan in case of other instance’s failure.

2021 Nov 04 Kostas

feature infrastructure

Throttle and Fallback!

Once in a while, you might encounter a throttle failure or a failed conversion due to corrupted data in the source file. This article explains how to make your integration flawless by handling these errors properly.

2021 Nov 03 Kostas

feature pdf

Compress or shrink a large PDF without complex coding

2021 Feb 22 Kostas

feature pdf

Apply watermark to PDF programatically

When working with documents, you might want to watermark them at some point. Some of the widespread use cases include marking invoices as paid, watermarking documents as a copy or a draft, etc. Our fast and secure ConvertAPI library allows you easily apply custom watermarks to your PDF using any programming language of your choice.

2021 Feb 18 Kostas

integration nodejs

Convert documents to and from PDF with NodeJs

Many progressive web apps nowadays are built using a serverless architecture where complex computations and machine resources are hosted by a third-party service, eliminating the need for server software and hardware management by the developer. ConvertAPI is a cloud-based, platform-independent market leader when it comes to processing documents on demand. In this example, we will see how simple it is to integrate it to our NodeJs project.

2021 Jan 04 Kostas

integration php

How to convert HTML + CSS to PDF using PHP?

It can be a real struggle when trying to convert an HTML file or a web page to a PDF document using PHP. Many developers worldwide choose to leave the complex logic for a 3rd party service specializing in this field to keep the project clean and easy to maintain. Using our ConvertAPI PHP library the conversion can be done in just a couple lines of code.

2020 Dec 30 Kostas

integration pdf python

Convert a list of images to a PDF document using Python

Having the ability to control all document conversions from a single place is a relief both for developers as well as project managers. This article shows how simple it is to configure and use our Python ConvertAPI library to create a PDF document from multiple images like jpg, png, webp, bmp, gif and others as well as chaining the conversions into a single workflow for all performance benefits.

2020 Dec 30 Kostas

automation zapier

How we save our time by automating documents flow on Zapier

Many companies, including our own, have hundreds of documents to review, edit, and archive every month. Our ConvertAPI app on Zapier allows you to connect your document repositories from Google Drive or Dropbox to our file processing service and automate your daily tasks at ease. See it in action with our real-life example.

2020 Jul 01 Kostas

feature integration

Improve performance with a custom file conversion workflow

ConvertAPI provides a flexible solution for building custom conversion flows. You can process your files by applying multiple conversions and other file manipulations using conversion chaining. This best-practice driven REST API approach improves performance and gives you full control over file processing at any stage of the flow.

2020 May 20 Kostas

feature pdf

Save page as PDF

The PDF button makes it easy for your users to save your web site pages as PDF files. There are two types of button - one for public pages, and another one for private pages.

2020 Mar 24 Jonas

new

ConvertAPI Press Release

Baltsoft company announces the availability of upgraded ConvertAPI, a high-performance online files conversion and manipulation service for developers. It can be integrated into any application or platform in just a few minutes, scales up to handle any amount of traffic, uses little resources and supports 500+ conversion actions.

2020 Mar 22 Jonas

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