Alyvero / tool

Compress PDF

Make a PDF smaller for uploading, emailing or sharing. This browser-only MVP re-saves the document; image-heavy PDFs may see little reduction.

Input

Select your file

Drop a file here, or choose from your device.

Choose file

About Compress PDF

Make a PDF smaller for uploading, emailing or sharing. This browser-only MVP re-saves the document; image-heavy PDFs may see little reduction.

Processing and privacy

Alyvero is designed to process files in the browser whenever the selected tool supports local processing. The exact processing method can vary by tool, so the information on this page matters before you begin.

For file handling, cookies, advertising and contact information, read the Privacy Policy.

A PDF can be too large for an upload form, email attachment or messaging app even when the document looks simple. Alyvero creates a new PDF and reports the actual before-and-after size so you can see whether the file became smaller.

Why a PDF can be large

Photos, scans, embedded fonts and other resources can make a PDF much larger than its visible text suggests. A PDF that has already been optimized may have little unnecessary overhead left to remove.

What Alyvero's compressor does

The current tool re-saves supported PDFs to reduce file overhead. It does not promise aggressive recompression of every embedded image, so a large photo-heavy PDF may show only a small reduction.

Check the original and result sizes after processing.
Keep the original if the result is not smaller enough for your destination.
For a specific problem, use the guides below for email, WhatsApp, uploads and Android or iPhone workflows.

If the PDF is still too large

The next step depends on what is making the file large. A scanned document may need image optimization, while a text-heavy PDF may already be close to its practical size.

PDF compression guides

The right way to reduce a PDF depends on why it is large and where you need to send it. These guides cover common file-size problems and explain what to try before and after compression.

PDF too large to upload? Reduce the file size firstAlyvero can create a smaller PDF copy in your browser. The current MVP uses lightweight PDF optimization, so image-heavy files may see limited reduction.Compress a PDF for emailUse Alyvero's Compress PDF tool when you need a smaller copy for an email attachment. Compare the resulting file size before sending it.How to reduce PDF file sizeUnderstand what makes PDFs large and the practical steps that can reduce PDF file size without blindly sacrificing readability.How to compress a PDF without losing readabilityLearn how to make a PDF smaller while keeping text, forms and important images readable.How to compress a PDF on AndroidA practical Android workflow for reducing a PDF file size without installing another app first.How to compress a PDF on iPhoneLearn how to reduce a PDF on iPhone using a browser-based workflow and what to do when the file remains large.Compress a PDF for WhatsAppHow to make a PDF smaller before sharing it on WhatsApp, and what to do if compression barely changes the file size.Why is my PDF still large after compression?Find out why a PDF may remain large after compression and which parts of the document usually account for the file size.