Strip metadata, annotations, form fields, and unused objects from PDFs directly in your browser. Choose Quick, Standard, or Deep cleanup, batch process up to 10 PDFs, and download individual files or a ZIP. Local processing, no signup.
What this tool does
We strip metadata, annotations, and unused objects from your PDFs. Typical reduction: 1–15% — sometimes more, sometimes less, depending on what's in the file.
What this tool doesn't do
We don't re-encode embedded images because that requires either server-side image processing or rasterizing the document. If you need a 50%+ reduction on an image-heavy PDF, a server-based tool will get you there — just know your file will leave your device.
Drop PDF files here or choose from your device
Up to 10 PDFs · All processing happens locally on your device
PDF Compressor helps you reduce unnecessary PDF data and shrink file size directly in your browser without installing extra software. It is useful when you want a lighter PDF for sharing or storage while keeping the original file on your device during processing. Use it when you want the PDF processing to happen inside your browser with clear controls for the compressed PDF.
Start on the PDF Compressor page and keep the browser tab open while you work. The controls above are focused on producing the compressed PDF from your PDF file.
Choose or drag in the PDF file you want to compress. The browser reads the file locally so you can start without sending the original PDF to a server-side processor.
Choose the cleanup or compression option that fits your goal, such as a lighter pass for quick sharing or a stronger cleanup when file size matters more.
Review the compressed PDF size before you finish. If the result is not small enough, adjust the available compression options and run the cleanup again. The PDF workflow stays focused on the document you selected.
Download the compressed PDF and compare it with the original before sharing, archiving, or attaching it elsewhere.
When you are finished, remove the PDF from the page or close the tab, especially on a shared device.
Use PDF Compressor on The Privacy Tools when you want to reduce PDF size with browser-based processing. It is a practical option for personal documents, forms, reports, and other PDF files you prefer to process locally. Your PDF stays on your device while the browser handles the compression and cleanup. There is no signup flow or account requirement, and no server-side PDF processing step for your PDF file.
PDF Compressor helps reduce PDF file size by removing unnecessary data such as metadata and unused objects where possible. It is useful when you need a smaller PDF for sharing, archiving, or uploading to a form with size limits.
No. Your PDF is processed locally in your browser for the compression workflow. Your file stays on your device during processing, without server-side PDF handling.
Yes. PDF Compressor is free to use with no account required. You can compress PDFs whenever you need a quick privacy-first size reduction.
No installation is needed. Open the page in a modern browser, choose your PDF, and download the compressed result when it is ready.
Yes. PDF Compressor works in modern mobile browsers, though larger PDFs may be easier to handle on a desktop or laptop. Performance depends on your device and file size.
The Privacy Tools focuses on browser-based utilities that reduce friction without asking for unnecessary access to your files. PDF Compressor gives you a simple way to shrink PDFs with local browser processing and no account wall.
Each level controls what gets stripped: Quick removes metadata only, Standard adds annotations and comments, Deep also removes form fields. No image quality is affected at any level.
For this tool, PDF cleanup uses pdf-lib running locally on your device. Selected files stay in your browser for compression.
Process up to 10 PDFs simultaneously. Each file shows individual progress and results, saving time when you have multiple files to compress.
Granular controls let you remove metadata, annotations, form fields, or unused objects. Tailor compression to your specific document types and privacy needs.
If a PDF is already well-compressed, the tool tells you instead of creating a slightly-larger 'compressed' version. Original file integrity is preserved.
Download all compressed PDFs as a single ZIP file when batch processing. Convenient and significantly faster than downloading files individually.
PDFs often contain highly sensitive information: contracts with signatures, financial statements with account numbers, medical records, legal documents with personal details. This compressor takes a different approach: the pdf-lib JavaScript library runs in your browser, using your device's CPU and memory to process files locally. For this tool, selected PDFs stay on your device during compression.
Reduce PDFs to fit Gmail's 25MB attachment limit, Outlook's 20MB limit, or your company's email size restrictions without uploading sensitive documents.
Many job application systems limit resume and portfolio uploads to 5MB or less. Compress your application PDFs to fit while maintaining professional quality.
Reduce storage costs in cloud services like Dropbox, Google Drive, or OneDrive by compressing PDF archives without losing them.
Smaller PDFs upload and download faster. Critical when sharing documents over slow connections or when working from mobile data.
Reduce file sizes of legal contracts, medical records, and other sensitive documents while keeping them safely on your device throughout the process.