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Review PDF documents with confidence

Compare PDF document versions, identify important text changes, and review revisions through an interactive comparison experience. Streamline reviews and validate updates across contracts, reports, policies, and other business documents.

Review document versions

Review original and modified PDF documents side by side to understand what changed between versions. Compare content in context without switching between separate files or views.

Identify text changes

Automatically detect added, deleted, and modified text between PDF documents. Visual indicators help reviewers quickly locate and understand document revisions.

Streamline document reviews

Reduce the time and effort required to review document revisions. Access detected changes quickly, understand updates in context, and evaluate revisions more efficiently across large PDF documents.

Side-by-side PDF comparison

Review original and modified PDF documents together in a side-by-side comparison interface. Evaluate changes in context and compare document versions without switching between files.

Display original and modified PDF documents simultaneously.
Review revisions in a clear side-by-side layout.
Compare content while maintaining document context.
Review large and multi-page documents more efficiently.

Side-by-side PDF comparison.

Review and navigate changes.

Review and navigate changes

Review detected changes from a dedicated differences panel and quickly navigate to relevant revisions within compared PDF documents. Each detected difference includes change details and page information, helping reviewers understand document updates more efficiently.

View all added, deleted, and modified text changes in one place.
Review change details and page information for each detected difference.
Review document revisions from a structured comparison view.
Navigate directly to the location of detected changes within the PDF.

Highlight document changes

Visually highlight detected text differences within original and modified PDF documents. Customize comparison highlights to make revisions easier to locate, understand, and review.

Highlight added, deleted, and modified text within compared documents.
Use distinct colors to differentiate document changes.
Configure highlight colors and opacity to match review requirements.
Show or hide comparison highlights during document review.

Highlight document changes.

Synchronized PDF viewing.

Synchronized PDF viewing

Keep original and modified PDF documents aligned throughout the review process. Synchronize scrolling, page navigation, and zoom levels to compare corresponding content more effectively.

Keep both PDF documents synchronized during comparison.
Align scrolling and page navigation across viewers.
Maintain consistent zoom levels while reviewing changes.
Enable or disable synchronization based on review requirements.

Responsive comparison experience

Review document differences across desktop and mobile devices with a responsive comparison interface. The layout adapts automatically to provide a consistent comparison experience across different screen sizes.

Review documents side by side on larger displays.
Access document comparisons through mobile-friendly layouts.
Maintain visibility of detected differences across devices.
Support document reviews across desktop, tablet, and mobile screens.

Responsive comparison experience.

Customize the comparison experience.

Customize document reviews

Configure the comparison experience to support different document review workflows. Control layout options, comparison views, and highlighting preferences to match business requirements.

Adjust component dimensions to fit application layouts.
Show or hide the differences panel during reviews.
Enable or disable synchronized viewing between documents.
Configure comparison highlights to support review workflows.

SEMANTIC TEXT COMPARISON WORKFLOW

Review document revisions with greater confidence

Compare PDF document versions through a structured review process that helps teams identify changes, understand revisions, and validate updates more efficiently. Semantic text comparison combines automated difference detection, visual highlighting, synchronized viewing, and structured review tools to streamline document analysis.

Load

Load original and modified PDF documents into the comparison interface to prepare them for review.

Compare

Compare document versions side by side while maintaining content context throughout the review process.

Detect

Automatically identify added, deleted, and modified text changes between document versions.

Review

Review detected differences through visual highlights and a dedicated differences panel to understand revisions more efficiently.

PLATFORM SUPPORT

Semantic text comparison capabilities across platforms

Side-by-side document comparison, difference highlighting, synchronized viewing, and interactive differences panels are available across supported PDF Viewer SDK platforms.

Capability	JS, React, Angular, Vue	ASP.NET Core & MVC	Blazor &.NET MAUI	WPF & WinForms
Side-by-side document comparison
Difference highlighting
Synchronized viewing
Interactive differences panel

supported partially supported not supported

Frequently Asked Questions

What is semantic text comparison?

Semantic text comparison compares the textual content of original and modified PDF documents and identifies added, deleted, and modified text. The detected changes help reviewers understand document revisions more efficiently.

What types of differences can semantic text comparison identify?

Semantic text comparison identifies only textual differences between two PDF documents and categorizes them as added, deleted, and modified text, helping reviewers clearly understand document revisions.

Can the differences panel be shown or hidden?

Yes. The Syncfusion PDF Viewer SDK allows the differences panel to be shown or hidden, helping users tailor the document review experience to their workflow requirements.

How can detected text differences be reviewed?

Detected differences are displayed in an interactive differences panel. Selecting a difference navigates directly to its corresponding location within the PDF documents, making change reviews faster and more efficient.

Are text differences highlighted in the compared PDF documents?

Yes. The PDF Viewer SDK visually highlights detected text differences within compared PDF documents, making revisions easier to identify and review. Comparison highlights can also be shown or hidden based on review preferences.

Can synchronized viewing be disabled?

Yes. The Syncfusion PDF Viewer SDK provides the enableSyncScrolling property to enable or disable synchronized scrolling, navigation, and zooming between compared PDF viewers.

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