# New File Upload shows only "Uploading is only available when editing a page." **What you are seeing** New File Upload shows only "Uploading is only available when editing a page." --- ## Why it happens Uploading needs a page to attach to, and the macro is being configured outside a page edit. --- ## What to do Edit the page and configure the macro there, or attach the file to the page first and use Existing Page Attachment. --- ## Settings involved | **Setting** | **Where** | **What it does** | | ---------------------------------------- | ----------------------------------------------- | ---------------- | | Approved external domains (Capable Suite | Capable Suite admin > Capable settings > Egress | \- | --- ## Limits that apply here | **Limit** | **Value** | **What happens** | | ----------------------- | ------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Linked PDF size ceiling | 2.5 MB | A PDF fetched from a public web address is refused above 2.5 MB and the macro shows "This PDF is too large". Attachments do not go through the proxy and are not subject to this cap. The limit is not s | | Height dropdown range | 1 to the document's page count | If the config panel cannot read the document (bad address, permission failure, upload still in flight), the only selectable height is 1. | --- ## A few things that catch people out * Uploading only works while editing a page; otherwise the panel just says uploading is unavailable. --- ## Related [Initial Page is ignored, and there is no previous/next or page-number boxThe macro is in Scroller layout, which always renders every page from the top and has no p](https://help.gocapable.com/pdf-embed/initial-page-is-ignored-and-there-is-no-previous-next-or-page-number-box.html) [Opening pop-out or fullscreen shows the page the reader was on, not the configured Initial Page, andThe modal carries over the reader's current position and fills the modal rather than apply](https://help.gocapable.com/pdf-embed/opening-pop-out-or-fullscreen-shows-the-page-the-reader-was-on-not-the-configured-initial-page-and.html) [Everything elseThe rest of this family.](https://help.gocapable.com/pdf-embed/everything-else.html) --- _Found it? Good._