PDF Compressor

About this PDF Compressor

Have you ever tried to email a PDF or upload it to a government portal, only to be told the file is too large? Our free Online PDF Compressor solves this problem in seconds. Whether you are submitting a university assignment, sending a resume, or uploading legal documents, this tool reduces the file size of your PDF so it meets strict email attachment limits. Best of all, it runs entirely in your browser, meaning your sensitive documents are never uploaded to a remote server.

How to Compress a PDF

1. Click the upload box and select the PDF file you want to compress.
2. Choose your Compression Level. (Recommended is usually the best balance between file size and readability).
3. Click the “Compress PDF” button.
4. Watch the progress bar! Once done, you’ll see exactly how much file space you saved.
5. Click “Download Compressed PDF” to save your new, lightweight file.

Frequently Asked Questions (FAQ)

How does this PDF compressor work?

This tool renders each page of your PDF into an image, compresses that image using optimized JPEG algorithms, and rebuilds it into a new PDF. This drastically reduces the size of image-heavy PDFs and scanned documents.

Will the text still be searchable/selectable after compression?

Because the pages are optimized as images to achieve maximum file reduction, the text in the new PDF will no longer be selectable. If you need to keep text selectable, we recommend using the “Low Compression” setting.