Optimize PDF loading for the web

Built for publishers and site owners who serve lengthy reports, catalogs or manuals and want visitors to reach the first page sooner.

Make a large PDF open page by page on the web, so readers can start viewing it before the entire document has finished downloading.

How to use

Choose the large PDF you want to prepare for progressive viewing online.
Load the file; the interface mentions a 64 MB ceiling.
Run the optimization so the document is rearranged for page by page loading.
Download the optimized PDF and test how it opens in a browser or viewer.
Compare the size and behavior of the file with the original before publishing it.

Example

A publisher puts a multi-page catalog online. They optimize the PDF so visitors can see the first pages without waiting for the whole document to download. They then test the display in different browsers.

Limits and formats

Optimization does not necessarily reduce the total file size; it mainly targets progressive display.
The result may look different depending on the viewer or browser used by the reader.
A PDF that is already linearized or protected may not change, so check the output before publishing.
Loading time also depends on the visitor's connection and on the size of the pages.

Where processing happens

The PDF is uploaded to the YOORfree compute server. Processing happens in memory without disk writing on the gateway, and the file is deleted when the operation ends. The source and the result are kept for at most 15 minutes by default on the web server before removal. No name or content is logged, and no third party is involved.

Frequently asked questions

What is web optimization for a PDF?

It rearranges a PDF for progressive loading, so the first pages can appear without waiting for the entire document to be downloaded by the reader.

Does the file become smaller?

Not necessarily. The main goal is progressive online display, not a guaranteed reduction in file size. Compare the size before and after if that matters to you.

Why does the result look different in another viewer?

Viewers and browsers do not all handle progressive loading in the same way. Test the PDF in the environment where your readers will open it.