Compress PDF Online
Compress PDF files online in your browser with PDFiva. Reduce file size while keeping documents readable and useful.
What this tool does
Reduce PDF file size for easier sharing, storage, and email. Useful when a PDF is too large to email, upload to a form, or store efficiently.
How to use compress pdf online
- Choose the PDF you want to optimize.
- PDFiva processes the document in your browser.
- Download the resulting PDF and compare its size and quality.
Browser-based processing
PDFiva's current tool workflow is designed to process the selected document in your browser. The front-end application does not include a PDFiva upload endpoint for this operation. Your device performs the work, so available memory, processor speed, browser support, and document complexity can affect processing time.
Before you download
Open the result and check important documents before sharing or submitting them. PDF files can contain forms, fonts, annotations, encryption, embedded content, and other features that vary from one document to another.
Frequently asked questions
Will compression always make a PDF smaller?
Not every PDF becomes smaller. PDFs that are already optimized, contain mostly compressed images, or use certain structures may see little reduction.
Does PDFiva upload my PDF?
The current PDF tools are designed to process files in the browser. Your file is selected locally and is not sent to a PDFiva upload endpoint by the front-end application.
Can I use PDFiva on mobile?
Yes. The interface is responsive and works in modern mobile browsers, subject to the device's available memory.