> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pdf.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> Notable customer-facing improvements to PDF.co, including new features, API updates, and fixes.

This changelog highlights notable customer-facing improvements to PDF.co. Routine maintenance and internal infrastructure changes are not included.

<Update label="June 2026">
  * Improved AI Invoice Parser job tracking, timeout handling, and result delivery.
  * Improved API reliability under high concurrency and repeated job-status requests.
  * Added clearer validation and error responses for oversized input downloads.
  * Changed API rate-limit windows from per-second to per-minute for smoother request handling.
</Update>

<Update label="May 2026">
  * Improved AI Invoice Parser result delivery and callback reliability.
  * Fixed PDF compression failures involving shared images.
  * Improved checkbox flattening and filled-rectangle rendering in PDF processing.
  * Improved HTML-to-PDF validation so invalid input and template errors return clearer client errors.
</Update>

<Update label="April 2026">
  * Improved security protections for HTML-to-PDF conversion.
  * Improved HTML-to-PDF support for single-page applications that use URL fragments.
  * Improved web-font loading reliability during HTML-to-PDF conversion.
  * Added OCR mode selection support to the PDF Split API.
</Update>

<Update label="March 2026">
  * Improved AI Invoice Parser output consistency for requested custom fields and structured line items.
  * Fixed duplicate material numbers caused by adjacent PDF text blocks.
  * Improved handling of missing and unrequested custom fields in AI Invoice Parser results.
</Update>

<Update label="February 2026">
  * Improved AI Invoice Parser extraction for long and multi-page invoices.
  * Fixed cases where structured invoice fields could be mixed into unrelated notes.
  * Improved timeout and job-cancellation handling for PDF conversion.
  * Improved error handling when converting images from remote URLs.
</Update>

<Update label="January 2026">
  * Added line-item structure hints to AI Invoice Parser.
  * Added support for JSON objects in configurable AI Invoice Parser fields.
  * Added page counts to AI Invoice Parser responses.
  * Improved validation and normalization of AI Invoice Parser line-item structures.
  * Improved timeout and aborted-job reporting for asynchronous processing.
</Update>

<Update label="October–December 2025">
  * Improved AI Invoice Parser extraction quality, caching, and custom-field handling.
  * Improved temporary-file handling and reliability for asynchronous job results.
  * Added clearer rate-limit details to API error responses.
  * Added more flexible result-retention periods and safer uploaded filename handling.
</Update>

<Update label="July–September 2025">
  * Added a legacy rendition option and configurable pre-render delay for HTML and URL conversion.
  * Added redaction support to PDF search-and-replace operations.
  * Added password support for PDF compression and information extraction.
  * Added Data Matrix barcode generation.
  * Added support for importing email attachments into PDF documents.
  * Improved webhook callback retries and conversion error messages.
  * Improved HTML-to-PDF performance and compatibility with a newer browser-rendering engine.
  * Improved compatibility with legacy Excel files during Excel-to-PDF conversion.
</Update>

<Update label="April–June 2025">
  * Added automatic credit refill support.
  * Added PDF Split and PDF Info processing to the newer processing platform.
  * Added TIFF and CMYK image support.
  * Added Google Drive downloads and presigned file-upload support.
  * Added profile support to simple PDF-to-text conversion.
  * Improved AI Invoice Parser API validation and result handling.
</Update>

<Update label="January–March 2025">
  * Added the v2 PDF compression API.
  * Expanded PDF editing with text, images, form fields, checkboxes, radio buttons, and formatting options.
  * Added profile support to HTML and URL conversion.
  * Added PDF flattening, crop-box handling, and PDF encryption and decryption.
  * Added a simple PDF-to-text API with configurable line endings.
</Update>

<Update label="October–December 2024">
  * Improved the scalability and reliability of HTML and URL conversion.
  * Improved credit refunds for failed and aborted jobs.
  * Added batch handling for pay-as-you-go billing.
  * Changed webhook processing so callback delivery does not consume additional credits.
</Update>

<Update label="July–September 2024">
  * Added Data Store APIs and webhook support for stored data.
  * Added the Delay API for scheduled processing workflows.
  * Expanded integration-key support across account, file, and job APIs.
  * Added monthly credit-pack support.
  * Improved optional callbacks and callbacks for aborted jobs.
</Update>

<Update label="April–June 2024">
  * Introduced the AI Invoice Parser API and Document Parser tools.
  * Added API management for reusable HTML templates.
  * Added Google Drive file support to document-processing workflows.
  * Added duration and job-duration fields to API responses.
  * Added profile support to simple PDF-to-text conversion.
</Update>

<Update label="January–March 2024">
  * Added the PDF Inspector as an alias for the PDF editing helper.
  * Added rotation-angle support for text watermarks and PDF editing.
  * Improved the Document Parser template editor and related APIs.
  * Improved PDF-to-image, HTML-to-PDF, and table-detection reliability.
</Update>

<Update label="July–December 2023">
  * Added TextSense document-processing integration.
  * Added output-link expiration information to API responses.
  * Improved OCR and CSV conversion behavior.
  * Improved PDF-to-image rendering for logos and object backgrounds.
  * Added a general webhook interface for processing callbacks.
  * Improved the dashboard, API Logs page, subscription pages, and local-time display.
</Update>

<Update label="January–June 2023">
  * Expanded PDF form-field reading and editing for checkboxes, combo boxes, and list boxes.
  * Added user-controlled PDF encryption and transparent colors for PDF editing.
  * Added direct-download link support for online file-sharing services.
  * Added paper-size support to image-to-PDF conversion.
  * Improved PDF text replacement, output filenames, and embedded-document handling.
  * Added public links to the PDF.co service status page and feature-request portal.
</Update>

<Update label="August–December 2022">
  * Added barcode-based PDF splitting.
  * Added profile support to PDF optimization.
  * Improved right-to-left text search and PDF text extraction.
  * Expanded Email Send API options and attachment information.
  * Added encrypted file uploads.
  * Added the Document Classifier and improved the Document Parser editor.
  * Expanded HTML-to-PDF profile controls for input styles.
  * Improved PDF information extraction for protected and damaged documents.
</Update>