Skip to main content
← Back

Compress PDF

Structural PDF optimization (not image recompression).

Server
Temporary server processingThis feature requires our server. The file is processed exclusively for this job and then automatically deleted.
Loading tool …

About this tool

What this tool does

Optimizes a PDF's internal structure to reduce its file size. Important: this is a structural optimization (qpdf), not image recompression — results vary a lot depending on the source file and are smaller for already-optimized or text-based PDFs than for scans with many redundant structures. No fixed percentage is promised.

How it works

Upload the PDF, download the optimized PDF.

Privacy

This operation requires brief server-side processing. Your file is used only for this task and automatically deleted afterward.

Limitations

Exactly 1 PDF per operation.

Information

WindowsLinuxmacOSiPhoneAndroid

How it works

Upload the PDF and download the optimized PDF — the size reduction happens automatically server-side.

Structural optimization, not image recompression

Only the file's internal structure is optimized (qpdf) — embedded images are not recompressed, and no fixed percentage is promised.

Easy to use

No installation, no setup. Upload a file, download the optimized version.

Works on your system

Runs in any modern browser, regardless of operating system, with no extra software.

No installation needed

No download, no setup. The tool runs directly in the browser.

Processed securely

This operation requires brief server-side processing. Your file is used only for this task and automatically deleted afterward.

Related Tools

FAQ

It depends heavily on the source file. This is a structural optimization (qpdf), not image recompression — already-optimized or text-based PDFs shrink only a little, scans with many redundant structures shrink a lot more. No fixed percentage is promised.

No. This tool does not recompress embedded images — it only optimizes the PDF's internal structure.

Yes. The optimization runs server-side — your PDF is briefly transferred for processing and automatically deleted afterward, not stored permanently.

Cookies on ConverterFleet

We would like to measure usage and show ad-funded content. Both require your consent. Your documents are still processed locally in your browser wherever possible, independently of this choice.