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See all capabilities you can build with on the PDFTron platform.
Reflow / Reader Mode
Reflow / Reader Mode
The industry-leading PDF rendering engine provides a range of accurate and fast PDF editing functionalities, directly in the browser.
Render and annotate Microsoft Office documents right on your app, without any Microsoft Office dependencies.
Render and collaborate on PNG, JPEG, Adobe Photoshop, Illustrator, DICOM, HEIC and hundreds more image formats.
Available in 24 languages, with the ability to add your own translations or override existing ones.
UI includes annotation toolbar, a multi-tab navigation experience, stamping and signature flows, and more.
A rich set of APIs allows you to customize extensive functionality and create your own look and feel with only a few lines of code.
In night mode, colors are adjusted to improve reading at night, in inverted color mode, all colors are inverted, and in custom color mode, you can set a custom color for text and the background color.
Give your users the document annotation tools they need, fully up to PDF-spec and guaranteed to look the same in other PDF viewers.
Use preset shapes, callout, and freehand annotations to highlight specific areas of your documents.
Optimize storage capacity by exporting annotations separately to your database.
Choose from a set of stamps or create a set of customs to expedite review and approval processes.
Add digital signatures in typed or handwritten format.
Ease review and approval processes with our annotation statuses or create your own custom set.
Create your own custom annotations.
Full support for the Apple Pencil annotation.
Control who can access annotation tools and colors.
PDFTron's own AI-powered text search and extraction algorithm provides accurate and versatile search modes and features within the WebViewer UI.
Access WebViewer UI's detailed search capabilities when you build your own UI.
Search results are listed with surrounding context displayed to enhance user experience.
Search documents for regular expressions such as personal and sensitive information.
Allow users to fill various form data, and extract form data for cost-effective on-site storage of information.
Merge field content with the form to generate one searchable filled document for archival or processing.
Change any visual of your form fields, and set design rules for select field types.
Sign documents with a drawn, typed, or uploaded signature and save numerous signature templates for quick sign flows.
Certify the unaltered state of a document with multiple signees.
Increase document security and enforce signature order by adding a digital certificate.
Add DocTimeStamp (DTS) signature to PDF that is verifiable with a third-party.
Add Long-Term Validation (LTV) signature to PDF that is verifiable at any time in the future, regardless of any changes made to technology specifications in the future.
Reduce bandwidth and experience blazing fast loading times with document streaming technology.
Increase rendering performance on older browsers by reducing document complexity.
Reliably copy text out of your document, powered by a two-step extract and rebuild process to maximize accuracy.
Ensure color accuracy for printing with CMYK color separation.
Easily add and remove drafted content by adding custom layers on top of documents and drawings.
Enabled via permissions, allow users to manipulate pages separately or in bulk entirely in their apps.
Drag one or multiple pages in the Page view to reorder them, or perform the same operation programmatically.
Extract pages into a newly generated PDF document, or save content in file storage.
Build your own custom encryption algorithm on top of included document security.
Manage and modify permissions to prevent users from unauthorized actions.
Securely embed static or dynamic watermarks with names, dates, and custom content into your documents.
Navigate your documents via a table of contents you can extract for easy reference.
Modify a bookmark name and set its destination right down to page sections and zoom areas.
Let users create their own set of bookmarks and export them for future use on the same document.
Create an overlay PDF that highlights all differences in text and graphic elements between two documents.
Compare changes in semantic categories, such as headers, paragraphs, numbers, and generate a document with a summary of differences for easy review.
Build PDF templates from HTML and DOCX files with replaceable content strings.
Populate any DOCX template with JSON from a datasource to generate your PDF, while retaining reflow, dynamic tables, images, and more.
Edit any text, image, path and JS element within your PDF, among many others!
Edit text content, appearance, page setup, and much more.
Detects all content for removal, whether it's visible or hidden behind a layer.
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