> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.slidehub.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# I can't upload files

There are two main reasons why you can’t upload files to your SlideHub content library. The same limits apply to every asset you add, whether it is a single slide, a full presentation or a document.

### 1)	Your files are too heavy
If you are trying to save a lot of content to your organization’s approved content library, we recommend doing it in batches. **Please note file sizes are limited based on the upload method. If you're using a web browser, each upload must be under 200MB, while PowerPoint add-in uploads (add or suggest slides) are capped at 100MB**

When you upload files, it's important to know that there are some size limitations to how big the size of the files can be:
* Files under 100MB will upload smoothly without any warnings
* For files between 100MB and 200MB, you’ll receive a warning indicating that the size may affect the speed of downloading or inserting the slides
* Files over 200MB won't be uploaded into the library

![Uploading slides](https://storage.crisp.chat/users/helpdesk/website/9d091a3f3b772000/file-validation-screenshot_v8mil6.png)
![Warning message to reduce file size](https://storage.crisp.chat/users/helpdesk/website/-/9/d/0/9/9d091a3f3b772000/screenshot-2025-12-04-165256_173w9yo.png)


| Check out the [How you can decrease the size of your PowerPoint presentations](/en-us/article/how-to-decrease-the-size-of-your-powerpoint-presentations-skyrvj/) article for some practical tips

### 2)	You are using an old Safari web browser
Unfortunately, old versions of Safari limits certain functions for SlideHub. If you wish to upload content, you should use a modern web browser (e.g. Chrome). You can change your default browser on your Mac settings. 

![](https://storage.crisp.chat/users/helpdesk/website/9d091a3f3b772000/image_t770ad.png)

### Which file types can I upload?
Presentations, slides and documents are uploaded to your company library as .pptx, .docx and .xlsx files. Images and icons are added from their own tabs in the manage view: see [How to add and manage company Images?](/en-us/article/how-to-add-and-manage-company-images-wnyb6q/) for JPEGs, PNGs and SVGs, and [How to add Icons to my company library?](/en-us/article/how-to-add-icons-to-my-company-library-ljuxsm/) for SVG icons.

| Once your files are uploaded, label them so your colleagues can actually find them. See [A Simple Guide to Structuring Your SlideHub Library](/en-us/article/a-simple-guide-to-structuring-your-slidehub-library-6xknld/)

|| Is none of this working? Don’t hesitate to [reach out to our Customer Success Team](mailto:success@slidehub.com) and we’ll be glad to find a solution.