FAQ

General

What are the size limits for PDF files?MIME typesDisable localStorage usageConfigure WebAssembly Threads in WebViewerHow to use WebViewer with IE11?Transpiling JavascriptIs it necessary to close a document before loading another one?Where can I find WebViewer nightly builds?Use a Content Security Policy (CSP) with WebViewerCORS supportHow to load a TIFF file in WebViewer?Add a License Key to WebViewerWhat type of server can WebViewer be hosted on?What is external converter?Finding Your WebViewer Version NumberWhy is the full screen button hidden (disabled) on iOS devicesSelf-Serve Substitute Fonts in WebViewerAdd video license key

React

Sharing WebViewer instance across componentsBest practices for handling the re-rendering of Custom ElementsHow do I use WebViewer with React strict mode?My custom header element is not rendering when using a polyfill (IE)React Hooks Error

WebViewer Server

WVS Install Issues2.4.0 Migration GuideSupporting XRefsChanging the HTTP data directoryModifying WebViewer ServerAdding a License to WebViewer ServerRetrieving Information about your ContainerManual Load Balancing with HAProxyWhat is the BCID?Mounting a docker data volumeWhat is WebViewer Server?

Forms

How to extract XML from a XFA PDF form?Does the Apryse SDK support XFA/LifeCycle PDF forms?

Cordova or Ionic

Open cordova or ionic links in external browser

DOCX Editor

DOCX Editor search and replace FAQDOCX Editor highlighting and shading FAQ

Annotations

Form Widget Tab OrderingWhere can I find code snippets for WebViewer 5.0 or earlier?Enable File Attachment ListHow to save and load a custom property on an annotation?How to enable inline commenting feature and right-click annotation menuHow to revert to old annotation selection styling (version 7.2 and earlier)FreeHandAnnotation creation delaySeparate opacity for fill and stroke

Troubleshooting

Why do I see watermark when I enter a valid license key?Why does a custom Stamp annotation lose its appearance after being resized?Why does my office file only have 1 page in documentLoaded?PNaCl modules can only be used on the open webHow to use WebViewer with IE9 and IE10?Why does WebViewer give a warning about Content-Encoding when loading from my server?Why do my PDF colors look different in WebViewer?How to load updated WebViewer files without clearing cache?Slow loadingPrinting doesn't work in Chrome 77 with client renderingWebViewer is loading in an infinite loopWhy does my XFDF not get imported into WebViewer?Why can’t I edit outlines in WebViewer when using WebViewer Server?DOMNodeInserted Warnings"npx: not found" errors when trying to install the dependenciesWhy does font visually change when switching tabs in multi-tab mode?Troubleshoot WebViewer Loading ErrorsAngular project WebViewer integration issues

Integration

How to upgrade to the new WebViewer version?

.NET Core

ASP.NET or Blazor Integration IssuesWhy is the viewer showing "Network Failure"?

Electron

Why is the viewer showing "Network Failure"?