> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/web/get-started/faq.md).

# FAQ

###

### General

{% content-ref url="/pages/nrJFLujzogAP7aexoK8X" %}
[What are the size limits for PDF files?](/web/get-started/faq/pdf-file-size-limits.md)
{% endcontent-ref %}

{% content-ref url="/pages/vuyxWNRbzGfFR2ProMoC" %}
[MIME types](/web/get-started/faq/mime-types.md)
{% endcontent-ref %}

{% content-ref url="/pages/lV1TOLERKIaGuAQ9ujW3" %}
[Disable localStorage usage](/web/get-started/faq/localstorage.md)
{% endcontent-ref %}

{% content-ref url="/pages/MeGtHFtClAURaSqHwwzE" %}
[Configure WebAssembly Threads in WebViewer](/web/get-started/faq/wasm-threads.md)
{% endcontent-ref %}

{% content-ref url="/pages/L2PiLPmloq8vhibWh85F" %}
[How to use WebViewer with IE11?](/web/get-started/faq/webviewer-with-ie11.md)
{% endcontent-ref %}

{% content-ref url="/pages/XINRe01LAtiRhgfa6IZx" %}
[Transpiling Javascript](/web/get-started/faq/transpiling-javascript.md)
{% endcontent-ref %}

{% content-ref url="/pages/a7USUZtYl3SOZZPmKZXK" %}
[Is it necessary to close a document before loading another one?](/web/get-started/faq/close-a-document.md)
{% endcontent-ref %}

{% content-ref url="/pages/4uqcmb9Fb7DeFK88CuxC" %}
[Where can I find WebViewer nightly builds?](/web/get-started/faq/webviewer-nightly-build.md)
{% endcontent-ref %}

{% content-ref url="/pages/6FfQCB6DASg562HRwFMj" %}
[Use a Content Security Policy (CSP) with WebViewer](/web/get-started/faq/content-security-policy.md)
{% endcontent-ref %}

{% content-ref url="/pages/hTWMAYuGfgJSDbeOQaM5" %}
[CORS support](/web/get-started/faq/cors-support.md)
{% endcontent-ref %}

{% content-ref url="/pages/fynEk9S5FShdbItdBTsX" %}
[How to load a TIFF file in WebViewer?](/web/get-started/faq/load-tiff.md)
{% endcontent-ref %}

{% content-ref url="/pages/p8yqmOTNPK1N8iPs55m5" %}
[Add a License Key to WebViewer](/web/get-started/faq/add-license.md)
{% endcontent-ref %}

{% content-ref url="/pages/UZA1OpOK8YYsvTlSuIoj" %}
[What type of server can WebViewer be hosted on?](/web/get-started/faq/webviewer-on-static-server.md)
{% endcontent-ref %}

{% content-ref url="/pages/W2grjRwNKW0YvXvfz5mX" %}
[What is external converter?](/web/get-started/faq/external-converter.md)
{% endcontent-ref %}

{% content-ref url="/pages/4lZO0ArWzGDEvLyKeOvC" %}
[Finding Your WebViewer Version Number](/web/get-started/faq/version-number.md)
{% endcontent-ref %}

{% content-ref url="/pages/VvscBo9m9AFNy84tp9km" %}
[Why is the full screen button hidden (disabled) on iOS devices](/web/get-started/faq/full-screen-button-disabled-on-iphone.md)
{% endcontent-ref %}

{% content-ref url="/pages/gOyvvB2vuE17xmd9QvHd" %}
[Self-Serve Substitute Fonts in WebViewer](/web/get-started/faq/self-serve-substitute-fonts.md)
{% endcontent-ref %}

{% content-ref url="/pages/iG4B4TMOzopeREOTB8DZ" %}
[Add video license key](/web/get-started/faq/add-license-video.md)
{% endcontent-ref %}

### React

{% content-ref url="/pages/M6WK0fJQydqbYkKa5afU" %}
[Sharing WebViewer instance across components](/web/get-started/faq/react-global-instance.md)
{% endcontent-ref %}

{% content-ref url="/pages/YvGOVipOBloQqDmrDxYS" %}
[Best practices for handling the re-rendering of Custom Elements](/web/get-started/faq/webviewer-custom-elements.md)
{% endcontent-ref %}

{% content-ref url="/pages/bAneMMDycqdWiSytN5P2" %}
[How do I use WebViewer with React strict mode?](/web/get-started/faq/react-strict-mode.md)
{% endcontent-ref %}

{% content-ref url="/pages/R8BAIM7lI69aiCH518so" %}
[My custom header element is not rendering when using a polyfill (IE)](/web/get-started/faq/custom-elements-with-polyfill.md)
{% endcontent-ref %}

{% content-ref url="/pages/wOUyuMccXoyuOcLvrZMl" %}
[React Hooks Error](/web/get-started/faq/react-hooks-error.md)
{% endcontent-ref %}

### WebViewer Server

{% content-ref url="/pages/gPkKrODqnEBts8LGfbJQ" %}
[WVS Install Issues](/web/get-started/faq/wvs-install-issues.md)
{% endcontent-ref %}

{% content-ref url="/pages/CJZJmKjFqWmNj2yZSu4F" %}
[2.4.0 Migration Guide](/web/get-started/faq/2-4-0-migration-guide.md)
{% endcontent-ref %}

{% content-ref url="/pages/Et5f5pdzLEHjfpybWyNF" %}
[Supporting XRefs](/web/get-started/faq/supporting-xrefs.md)
{% endcontent-ref %}

{% content-ref url="/pages/WOXaGPHuJ9oKzO95wO2Z" %}
[Changing the HTTP data directory](/web/get-started/faq/changing-the-http-data-directory.md)
{% endcontent-ref %}

{% content-ref url="/pages/sXD6PuCQOVjtcI8YBFNg" %}
[Modifying WebViewer Server](/web/get-started/faq/modifying-wvs.md)
{% endcontent-ref %}

{% content-ref url="/pages/mwHWmpTN8uPxQAcfYUn7" %}
[Adding a License to WebViewer Server](/web/get-started/faq/add-license-1.md)
{% endcontent-ref %}

{% content-ref url="/pages/A4EOoZlAFR26QJnlmNzI" %}
[Retrieving Information about your Container](/web/get-started/faq/container-information.md)
{% endcontent-ref %}

{% content-ref url="/pages/9NUoK4ywGZgv5JB4IyxL" %}
[Manual Load Balancing with HAProxy](/web/get-started/faq/load_balancing.md)
{% endcontent-ref %}

{% content-ref url="/pages/zG3GS4PMdmccek2ShMQ4" %}
[What is the BCID?](/web/get-started/faq/what-is-the-bcid.md)
{% endcontent-ref %}

{% content-ref url="/pages/Oz4b5cdK99OPw3Lzev05" %}
[Mounting a docker data volume](/web/get-started/faq/mounting-docker-data-volume.md)
{% endcontent-ref %}

{% content-ref url="/pages/QC0ACdwzQBFSbW6KL91r" %}
[What is WebViewer Server?](/web/get-started/faq/what-is-wvs.md)
{% endcontent-ref %}

### Forms

{% content-ref url="/pages/RtNSaAT0mT1705GGselS" %}
[How to extract XML from a XFA PDF form?](/web/get-started/faq/extract-xml-from-xfa.md)
{% endcontent-ref %}

{% content-ref url="/pages/FvIIEpKyy42sxHi4FjS3" %}
[Does the Apryse SDK support XFA/LifeCycle PDF forms?](/web/get-started/faq/xfa-lifecycle-support.md)
{% endcontent-ref %}

### Cordova or Ionic

{% content-ref url="/pages/Rh9KaXK3NDCouLDVSHlS" %}
[Open cordova or ionic links in external browser](/web/get-started/faq/cordova-links-external-browser.md)
{% endcontent-ref %}

### Annotations

{% content-ref url="/pages/aeA7vRdGX30u3myMQWwO" %}
[Form Widget Tab Ordering](/web/get-started/faq/widget-tab-ordering.md)
{% endcontent-ref %}

{% content-ref url="/pages/HsrFW3ZpcxwdBYTvXCjL" %}
[Where can I find code snippets for WebViewer 5.0 or earlier?](/web/get-started/faq/webviewer-5.0-snippets.md)
{% endcontent-ref %}

{% content-ref url="/pages/adectDPHv0tTnoLSHvFw" %}
[Enable File Attachment List](/web/get-started/faq/file-attachment-list.md)
{% endcontent-ref %}

{% content-ref url="/pages/cho1kPDnB0ZpghbbiChy" %}
[How to save and load a custom property on an annotation?](/web/get-started/faq/save-load-custom-props.md)
{% endcontent-ref %}

{% content-ref url="/pages/R7q94AONBevpQwWOXksr" %}
[How to enable inline commenting feature and right-click annotation menu](/web/get-started/faq/enable-inline-comment.md)
{% endcontent-ref %}

{% content-ref url="/pages/SOjYm08OYmh48t1vrskT" %}
[How to revert to old annotation selection styling (version 7.2 and earlier)](/web/get-started/faq/revert-selection-styling.md)
{% endcontent-ref %}

{% content-ref url="/pages/87LSW34SmYZdt7sQt4rv" %}
[FreeHandAnnotation creation delay](/web/get-started/faq/pdf-color-different/freehand-creation-delay.md)
{% endcontent-ref %}

{% content-ref url="/pages/r5FHrBnDPEItIIuYRMTJ" %}
[Separate opacity for fill and stroke](/web/get-started/faq/separate-opacity-for-fill-and-stroke.md)
{% endcontent-ref %}

### Troubleshooting

{% content-ref url="/pages/LcaVdL57jtUQAtLxkB8j" %}
[Why do I see watermark when I enter a valid license key?](/web/get-started/faq/license-watermark.md)
{% endcontent-ref %}

{% content-ref url="/pages/Cz8txsefToaoEubgDwXy" %}
[Why does a custom Stamp annotation lose its appearance after being resized?](/web/get-started/faq/custom-stamp-appearance.md)
{% endcontent-ref %}

{% content-ref url="/pages/NsJ1ztOY9RelYZoVMnqb" %}
[Why does my office file only have 1 page in documentLoaded?](/web/get-started/faq/office-file-page-count.md)
{% endcontent-ref %}

{% content-ref url="/pages/ziLFvcQDckYUG2Z64VbP" %}
[PNaCl modules can only be used on the open web](/web/get-started/faq/pnacl-modules.md)
{% endcontent-ref %}

{% content-ref url="/pages/65G8gsv2P3ERaH70Wmed" %}
[How to use WebViewer with IE9 and IE10?](/web/get-started/faq/webviewer-with-ie9.md)
{% endcontent-ref %}

{% content-ref url="/pages/0q3TeQDhdjFI7JP5GzIQ" %}
[Why does WebViewer give a warning about Content-Encoding when loading from my server?](/web/get-started/faq/content-encoding.md)
{% endcontent-ref %}

{% content-ref url="/pages/HF8n2JuxkVxi3EDMXqyY" %}
[Why do my PDF colors look different in WebViewer?](/web/get-started/faq/pdf-color-different.md)
{% endcontent-ref %}

{% content-ref url="/pages/2WmZZKHGTmTgWydngmO1" %}
[How to load updated WebViewer files without clearing cache?](/web/get-started/faq/load-webviewer-files-no-cache.md)
{% endcontent-ref %}

{% content-ref url="/pages/arCbuOeJPROzdKASatsn" %}
[Slow loading](/web/get-started/faq/slow-loading.md)
{% endcontent-ref %}

{% content-ref url="/pages/BmrG5mx5KWJME5t8OUws" %}
[Printing doesn't work in Chrome 77 with client rendering](/web/get-started/faq/chrome-77-printing.md)
{% endcontent-ref %}

{% content-ref url="/pages/F2wqsSAQqWbbYBeZnls8" %}
[WebViewer is loading in an infinite loop](/web/get-started/faq/infinite-loading-loop.md)
{% endcontent-ref %}

{% content-ref url="/pages/ohgueoW22UZFzkCVZeFf" %}
[Why does my XFDF not get imported into WebViewer?](/web/get-started/faq/annotation-xfdf-import.md)
{% endcontent-ref %}

{% content-ref url="/pages/NuYGXjsqmjbEGuCBekfp" %}
[Why can’t I edit outlines in WebViewer when using WebViewer Server?](/web/get-started/faq/outlines-webviewer-server.md)
{% endcontent-ref %}

{% content-ref url="/pages/45IPp7MYutbcE3vTcLmf" %}
[DOMNodeInserted Warnings](/web/get-started/faq/domnodeinserted-warning.md)
{% endcontent-ref %}

{% content-ref url="/pages/KNqX0Mch52Ox8NVjYcLi" %}
["npx: not found" errors when trying to install the dependencies](/web/get-started/faq/npx-not-found.md)
{% endcontent-ref %}

{% content-ref url="/pages/XsHzPWJVZmLbIO8eFi0V" %}
[Why does font visually change when switching tabs in multi-tab mode?](/web/get-started/faq/font-multitab.md)
{% endcontent-ref %}

{% content-ref url="/pages/cOwqPj5r7orGnEnPlriq" %}
[Troubleshoot WebViewer Loading Errors](/web/get-started/faq/loading-errors.md)
{% endcontent-ref %}

{% content-ref url="/pages/wfZhjxcTd53BDL2YWIw9" %}
[Angular project WebViewer integration issues](/web/get-started/faq/angular-integration-issues.md)
{% endcontent-ref %}

### Integration

{% content-ref url="/pages/lDcTHa4Frfh9vLuRZQtC" %}
[How to upgrade to the new WebViewer version?](/web/get-started/faq/upgrading-webviewer.md)
{% endcontent-ref %}

### .NET Core

{% content-ref url="/pages/xt3wxnpLUWgWWQ6VmDM4" %}
[ASP.NET or Blazor Integration Issues](/web/get-started/faq/blazor-integration-issues.md)
{% endcontent-ref %}

{% content-ref url="/pages/I1Qv6Ey1G05JIM5FTxLf" %}
[Why is the viewer showing "Network Failure"?](/web/get-started/faq/viewer-showing-network-failure.md)
{% endcontent-ref %}

### Electron

{% content-ref url="/pages/I1Qv6Ey1G05JIM5FTxLf" %}
[Why is the viewer showing "Network Failure"?](/web/get-started/faq/viewer-showing-network-failure.md)
{% endcontent-ref %}


---

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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
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