Changelog

We've fixed a hang in the DOCX to PDF converter where Word documents with legacy input form fields triggered a popup during save and the conversion timed out.

The PDF to JSON converter gains a new Images parameter to remove, embed, or AI-describe pictures, and a DetectHeadings parameter that marks heading-like paragraphs with a headingLevel field.

Rotated pages now keep their correct orientation in the PDF to OCR and PDF to Rasterize converters.

Convert PowerPoint and Excel files to Markdown, and HTML to Markdown now handles images.

The HTML to PDF, JPG, PNG, and TXT converters now each convert an uploaded HTML file or a live web page URL, and the standalone Web to * converters are folded into them.

The Unzip converter now accepts archives with up to 500 files, raised from 100, and folder entries no longer count toward the limit.

HTML to PDF and Web to PDF now convert up to 2000 pages by default, raised from 100.

We've fixed a crash in the MSG to PDF converter that caused some Outlook email messages with embedded (OLE) attachments to fail conversion.

We've fixed a text layer displacement issue in PDF to OCR output, so the recognized text layer now aligns correctly with the underlying page image.

PDF to Word and PDF to RTF have a new nocolumns layout that keeps the text editable but forces it into a single column.

We've resolved two issues in the PDF to OCR converter: very large PDFs could fail to convert, and the PageRange parameter was not always applied.

We've resolved an issue in the PDF Text Watermark converter where some characters could render as wrong or missing glyphs.

Drawings that reference the extfont.shx Big Font now render Japanese text correctly in DWG to PDF.

PDF text watermarks can now use Noto Sans CJK, a Unicode font that covers Chinese, Japanese, and Korean.

Compress PNG now reaches a requested target file size faster, thanks to an updated image library.

We've resolved an error in the Email to Extract converter that could interrupt extraction.

We've resolved an issue in the PDF to OCR converter that could add a blank page to the output.

A new Compress PNG API reduces PNG file size by up to 80 percent while preserving full alpha transparency. Choose a compression level, target a percentage of the original size, or aim for a specific output size in kilobytes.

Two new Office merge tools are available - Merge DOCX combines multiple Word documents into a single DOCX file, and Merge PPTX combines multiple PowerPoint presentations into one PPTX, each preserving the original formatting of every source file.

We've launched three new converters for DICOM (.dcm) medical images from CT, MRI, ultrasound, and other modalities. They decode DICOM pixel data and apply the stored window center/width (VOI LUT) so the output matches the diagnostic presentation.

We've launched a new AI-powered Remove Watermark PDF converter that detects and removes text watermarks from PDF documents. AI detects repeated overlay text across pages - status stamps, evaluation marks, ownership notices, and similar annotations - and removes only the detected watermark cleanly, leaving surrounding content unchanged. Watermarks in any language are supported, with an optional hint for unusual cases.

We've launched two new e-invoice converters that bring ZUGFeRD to Peppol and Factur-X to Peppol invoices onto the Peppol network, letting you automate compliant electronic invoicing directly from your accounting or ERP system.

We've resolved two issues affecting output accuracy in the PDF to TIFF-Fax and PDF to PPTX converters.

A new Peppol to PDF converter renders Peppol BIS Billing electronic invoices into clean, human-readable PDF documents using a built-in or custom template.

We've rolled out several improvements to the Statistics page focused on flexibility and performance. Whether you're reconciling billing for a specific month, auditing a particular token's traffic, or just reviewing trends, the page now feels faster and gives you the precision you need.

We've shipped several updates across our HTML, PDF, and AutoCAD converters for better rendering, more output control, and finer image quality tuning.

We've launched a new PDF to MD API that converts PDF documents into clean, structured Markdown (.md) files with a single REST-API call. It preserves standard document structures like headings, paragraphs, lists, and tables - making it ideal for documentation workflows, content migration, LLM ingestion, and feeding RAG pipelines.

We've launched two new moderation converters - Document Moderation and Image Moderation - that automatically analyze content for inappropriate, harmful, or policy-violating material.

We've made three accuracy improvements to the PDF Print Production API, bringing colors and tint bars closer to the source document.

The PDF template converter now reproduces HTML border styles far more accurately.

A new Barcode and QR Code API lets you generate barcodes and QR codes from data, and detect and decode them from documents and images, all through a single REST endpoint.

We've refreshed our Data Security blog post to improve the clarity, structure, and completeness of how ConvertAPI protects your data. This update is documentation-only - there are no changes to our infrastructure, security practices, or underlying systems.

New File to PDF and Office to PDF converters let you send almost any document to a single endpoint and get a PDF back, without having to pick the exact source-format converter yourself.

We've upgraded the PDF to Print (PDF Preflight) converter with roughly 10x faster Bleed mode processing and support for up to 100 pages, up from the previous limit of 3. Better performance and fewer limits make it ready for real production workloads.

We've improved reliability and performance across the Log to PDF, VSDX to JPG/PNG, and PDF to TIFF-Fax converters.

We've launched a new DOCX to MD API that converts Microsoft Word (.docx) documents into clean, structured Markdown (.md) files. Upload your DOCX file and receive a ready-to-use Markdown file for publishing or further processing.

We've introduced a new PDF Crop converter that makes it easy to trim PDF pages exactly the way you need - automatically detect content, crop to a specific size, or remove margins, all in one flexible API.

The Email to Extract and Email to Metadata converters now include an IgnoreInlineAttachments option that gives you more control over attachment extraction. When enabled, inline attachments such as embedded images, logos, and similar content are skipped, and only regular (non-inline) attachments are included in the output.

We've improved the Template to DOCX and Template to PDF converters to better handle multiline text in placeholder binding.

You can now convert PDF documents to four more formats - HTML, XLSX, RTF, and PCL - expanding the ways you can repurpose, edit, and print your PDFs.

We've added Multi-Factor Authentication (MFA) to help you better protect your ConvertAPI account and API usage. MFA adds an extra layer of security on top of your password, significantly reducing the risk of unauthorized access.

We've launched ConvertAPI MCP - an MCP server implementation that makes file conversion a first-class tool for AI agents and MCP-compatible clients. Instead of calling APIs manually or building custom wrappers, AI tools can discover, validate, and execute file conversions through the Model Context Protocol (MCP), without hard-coding API logic into prompts or applications.

We've expanded ConvertAPI's global infrastructure with two new server locations to make conversions faster, more reliable, and closer to you, while helping support regional data residency and compliance needs.

We've rolled out a set of website improvements that make ConvertAPI simpler and more intuitive, headlined by a new unified converter search.

We've added the PDF to PDF/UA converter, a new way to ensure your PDFs meet the PDF/UA (ISO 14289-1) accessibility standard with correct tagging, logical reading order, semantic structure, and assistive-technology-ready output. Just upload your PDF and convert to get a fully compliant, accessible document with no manual remediation. It's valuable for public sector organizations, educational institutions, publishers, and enterprises.

Two new Word document tools are available - DOCX Compare highlights the differences between two documents, and DOCX to XML exports Word content as structured XML.

A new HTML to Excel converter turns HTML tables and pages into XLS or XLSX spreadsheets, making it easy to pull tabular web content into Excel.

We added new eBook converters for DjVu and MOBI files, and JPEG XL (JXL) as an image output format, broadening the range of documents and images you can convert.

A new Image Vectorization converter turns raster images like PNG and JPG into clean, scalable SVG vector graphics, with fine-grained control over color, detail, and curve smoothing.

We've enhanced our PDF to PowerPoint (PPTX) converter to give you cleaner, more accurate slides and more control over how your fonts and text are handled.

A new PDF Resize converter changes the page size and orientation of a PDF, letting you standardize documents to A4, Letter, or custom dimensions.

We've added a new Annotations parameter to the PDF to DOCX converter, giving you full control over how PDF annotations appear in the Word output.

The new Validate PDF/A converter is a fast, reliable way to check whether your PDFs truly meet the PDF/A archival standard - ideal for compliance, document management, and e-invoicing workflows. Because PDF/A is the global standard for long-term digital preservation, organizations handling legal, archival, or financial documents can confirm compliance before archiving, sharing, or processing, saving time and preventing costly workflow errors.

The SVG to PDF converter now keeps SVG content as true vectors instead of rasterizing it, so the resulting PDF stays crisp at any zoom level and prints cleanly.

The PDF to PDF/A converter now supports more PDF/A versions and includes built-in ZUGFeRD / Factur-X e-invoicing support - simple, clean, and ready for production. Defaults stay backwards-compatible (pdfa2b).

We've made big improvements to our PDF to TXT converter, making text extraction faster, cleaner, and closer to the original document layout - especially when formatting matters most.

We've improved the PDF Delete-Pages converter with a new smart option that automatically detects and removes blank pages.

We've enhanced our image converters to give you more flexibility and even better results across all formats.

We've added JFIF image support to our PDF converters, making image-to-PDF workflows even more flexible.

We've refined how our PDF to Redact converter detects and redacts text, making the process more precise and natural.

We've made powerful upgrades to our PDF to Redact API, making it smarter, more flexible, and easier to control.

We've upgraded our PDF to OCR converter with a new OcrMode parameter that lets you control exactly how OCR is applied to your PDF pages, fine-tuning your workflow for speed, accuracy, or consistency.

We've enhanced the PDF to Flatten API with three new properties that give you more control over how documents are processed, letting you balance security, interactivity, and usability while preserving the original design.

We've added a new Lossless Preset to the PDF to Compress API that reduces file size without compromising quality - perfect for when every pixel, font, or detail matters but you still need a leaner file.

You can now save multi-step conversion workflows to your account and reuse them by reference, so chained conversions no longer have to be defined on every request.

Our PDF to OCR and JPG to TXT converters just got a major vocabulary boost. Add any of the codes below to the OcrLanguage parameter to pull clean, editable text straight out of your files.

A new AI-powered converter translates gettext PO localization files, filling in target-language strings while preserving the file structure.

The XLSX to PDF converter now includes AutoPageFit, which keeps every column of your spreadsheet together on a single page - no more wrestling with page breaks or chopped-up spreadsheets.

The PDF to OCR converter adds a PageSegmentationMode parameter that tells the engine exactly how to read each page, producing cleaner text and fewer post-edit fixes.

We've enhanced the PDF Extract-Images converter with two new parameters, MinimumImageWidth and MinimumImageHeight, that let you filter out unwanted tiny images such as empty placeholders, artifacts, or minor icon fragments from your extracted results.

We've rolled out a major Washington, DC datacenter upgrade that significantly boosts performance and reliability for ConvertAPI users, delivering up to 2x faster conversions.

The Template to DOCX and Template to PDF converters now offer significantly enhanced table styling. Your documents stay consistent and professional even after complex placeholder replacements.

The PDF Merge converter now fully supports rotated pages when adjusting PageSize and PageOrientation.

We've significantly improved the performance of our PDF to Redact converter. Powered by smart AI that automatically detects sensitive data, conversion speeds are now dramatically faster - from a few seconds up to several times quicker - while delivering the same accurate, reliable results you've come to trust.

We've added support for converting HEIF (High Efficiency Image File Format) images to PDF. The new endpoint turns .heif and .heic files into high-quality PDFs with fast processing - ideal for iOS apps handling HEIC photos that need quick PDF generation.

We've launched the ConvertAPI ChatGPT plugin, now available in the GPT Store. Find it by typing "ConvertAPI" in the search bar.

We've rolled out a range of improvements across the ConvertAPI public site to make your experience smoother, faster, and more helpful than ever.

The PDF Split converter can now split a document by its bookmarks, creating a separate file for each top-level bookmark - alongside the existing split by range, pattern, and text pattern options.

The WEB and HTML converters now accept a Headers parameter, letting you pass custom HTTP headers with each conversion.

We've added three new parameters to the PDF Redact converter: RedactionColor, RedactionThickness, and PageRange. The converter is now also available as an action on the Zapier no-code platform.

We've introduced the PDF Extract API, an AI-powered converter that automatically pulls key information from invoices, receipts, forms, ID cards, and other documents to speed up workflows and cut manual data entry.

We've added a Markdown to PDF conversion API that turns Markdown files into clean, structured PDF documents - ideal for reports, technical documentation, and generating printable, shareable docs straight from a README, complete with code examples, images, and tables.

We've added a new WEB to TXT API and expanded the parameters available for the HTML to TXT API.

We shipped a batch of improvements to the ConvertAPI website, covering navigation, pricing, converter pages, and code snippets.

We've upgraded our PDF to Word, PowerPoint, and Excel conversion engine to deliver more precise and reliable results.

We've refreshed the account dashboard with metrics, billing information, and usage statistics, so each role can quickly find the resources relevant to them.

We've added a customizable DateFormat option to the XLSX to PDF converter, so your dates always look exactly how you want no matter where the document is opened. It standardizes date formatting and eliminates inconsistencies caused by regional settings. The default format is US (M/d/yyyy), and you can now choose the format that best suits your needs.

We've added the Redact PDF converter to securely mask and delete sensitive information from PDF files. It's ideal for ensuring data privacy, regulatory compliance, and efficient document sanitization.

We've rolled out a revamped pricing design and split usage tracking and plan upgrades into dedicated pages for easier navigation.

We've upgraded our WEB engine, which powers the web, HTML, and email converters, for better performance and broader compatibility.

The Overlay Watermark PDF converter lets you use one PDF as a background or stamp on another. You can pick which page of the overlay PDF becomes the watermark, then align it horizontally and vertically, resize it, adjust opacity, and customize other settings.

The Split PDF converter can now divide a document using a regex text pattern with the new SplitByTextPattern parameter, joining the existing SplitByPattern, SplitByCustomRange, and ExtractPages options.

A new Markdown to HTML converter renders MD files into clean HTML, complementing the existing Markdown converters for PDF and DOCX.

We've added ConvertAPI to Bubble.io! You can now quickly convert and manage files like PDFs, Word documents, Excel sheets, and images right within your app. This integration makes file handling easier and improves your app's functionality.

The Join Images API merges multiple images into one with a simple REST API call, giving you control over spacing, color, and output format - perfect for developers building seamless collages or presentations.

You can now add team members with different roles to your account. Assign Owner, Admin, Developer, and Finance roles to streamline workflows and control who can access what.

We've launched a new physical server in Toronto's IBM data center, so requests from Canada are processed in-country instead of routing to the Washington, DC location.

Word, Excel, and PowerPoint to PDF conversions are now 3-7 times faster. For example, converting a three-page Word document to PDF now takes about one second.

We've launched a new server in Sydney, Australia, serving customers across Oceania including Australia and New Zealand, and adding a redundant node to our disaster recovery setup.

We added new PDF output properties - EmbedFonts, SubsetFonts, SubsetFontsThreshold, OpenPage, and RotatePage - giving you more control over font embedding, font management, and page rotation for greater precision in how PDF files are rendered and displayed.

With the new RetainNumbering property, the PDF Merge API can keep the original page numbering from merged documents. This eliminates manual re-numbering and preserves the structure and integrity of large PDF files during merging.

In July 2020, we introduced support for Acrobat 9 and Acrobat DC PDF outputs, expanding PDF conversion options. This update improves compatibility with modern PDF versions, ensuring high-quality conversion and more accurate preservation of complex file structures, making it easier for businesses to handle PDF files across different versions of Adobe software.

We added the RemoveDuplicateFonts property to the PDF Merge API. When enabled, it excludes duplicate fonts during merging, optimizing file size and reducing redundancy in merged documents.

ConvertAPI now offers a Textbox watermark feature that adds multiline text watermarks or stamps directly to PDF files. It supports flexible customization for branding, confidentiality notices, or document identification.

We've added a new XLSX to CSV conversion API endpoint that turns Excel spreadsheets (.xlsx) into CSV - ideal for lightweight, structured data files compatible with a wide range of data-processing tools. For example, a data analyst can automate preprocessing of a large Excel report into CSV for a Python-based ETL pipeline.

In February 2020 we launched a redesigned website and logo, giving ConvertAPI a fresh look and an improved user experience for both new and existing customers.

ConvertAPI released its Command Line Utility (CLI), letting you run file conversions directly from the terminal on Linux, Windows, and macOS. The tool simplifies automation for developers and power users who want to integrate conversions into their scripts and workflows.

ConvertAPI now converts iWork Keynote presentations to PNG, JPG, and TIFF images, expanding compatibility with Apple's productivity suite and making it easier to share and repurpose your content.

ConvertAPI now supports the PDF/A-3b standard, a format designed for long-term document preservation. This version of PDF/A embeds files alongside the document, making it well suited for archiving important records.

ConvertAPI now supports HEIC image conversions, turning HEIC files (a format commonly used on iOS devices) into PDF or other image formats such as JPG and PNG. This makes it easier to share and store high-quality images.

We launched a public status page with real-time updates on system performance, uptime, and any ongoing issues, helping you stay informed about the platform's reliability.

We introduced the PDF to OCR API, which adds a searchable text layer to scanned PDF documents. It's useful for digitizing physical documents and improving searchability within PDF files.

ConvertAPI introduced a new Word to TXT conversion API for extracting plain text from Word documents. It simplifies workflows that require data extraction from Word files for text analysis or archival purposes.

We added a PDF Thumbnail generator that quickly creates thumbnails of PDF pages. It's ideal for previewing documents, building gallery images, or embedding PDF previews in websites and applications.

The new Zapier integration makes it easy to build file-conversion workflows with ConvertAPI. Automate tasks like document processing and format changes directly inside your Zapier workflows.

We've added the PDF Compress API, a new endpoint that reduces PDF file size by up to six times without compromising quality. It's ideal for cases like a legal firm archiving large volumes of scanned case documents, where smaller files mean lower cloud storage costs and faster retrieval while legibility and formatting stay intact.

In 2018 we introduced the PDF Rotate API, letting you rotate individual or multiple PDF pages with a single REST API call to streamline document editing and formatting.

In June 2018 we released the Ruby gem for ConvertAPI, making file conversion easy to integrate into Ruby applications. The gem simplifies adding conversion features to any Ruby project and makes them accessible to developers.

With the new E-Book to PDF and Image API, you can convert popular e-book formats such as azw, epub, and mobi to PDF or image formats - perfect for publishers and readers alike.

ConvertAPI's .NET library is now available on NuGet, giving developers a convenient way to integrate file conversions into their .NET applications and opening up more opportunities for users working with Microsoft technologies.

The new PDF Button lets website owners give visitors an easy way to convert web pages to PDF or image with just three lines of HTML code, simplifying web-to-PDF integration for developers.

We added support for OXPS to image and OXPS to PDF conversions, extending format compatibility to the Open XML Paper Specification.

The journey began in July 2011 with the launch of ConvertAPI, a pioneering solution for file conversions in the cloud. This milestone marks the birth of the platform that has since evolved to support hundreds of file formats.