Compression PDF
Fast, accurate and free online compression pdf tool running directly in your browser.
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1Enter data
Enter content, paste text or load a file from disk. -
2Click the button
The tool will immediately process your data in the browser. -
3Get the result
Copy the finished text or save the file to your device.
return "Result ready in 0.1s";
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PDF compression in the browser
Load the file, select the compression level and download a lighter document.
Drag and drop your PDF file here or click to select
PDF, one file at a time. Compression is done in your browser (pages are rendered as JPEG images).
Reduce PDF file size by converting pages to lighter images - without sending the document to a server.
- • The file does not leave your browser.
- • Pages are rendered as JPEG images of the selected quality.
- • Perfect for sending by e-mail and systems with attachment size limits.
- • You save the result as a new, lighter PDF file.
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Other tools you may find usefulOnline PDF Compression – Reduce PDF File Size
PDF Compression is a free tool that reduces the size of PDF documents by up to 80-90% while maintaining text readability and decent image quality. Perfect when the file is too large to send by e-mail, add as an attachment to an official form, or quickly publish it online. Everything happens in your browser - without creating an account and without installing programs.
What is
used for Large PDF files - scans, presentations, catalogs or photo contracts - often exceed limits on attachments (e.g. 10-25 MB in e-mail) or limits on forms on the websites of offices and banks. PDF compression reduces the weight of the file, so you can send it faster, save disk space and speed up document loading on the Internet.
How it works
The tool resamples (downsamples) and recompresses images embedded in PDF, removes unnecessary metadata and optimizes the file structure. Text and vectors remain sharp because raster images typically account for 90% of a document's size. You can choose the compression level and find the balance between weight and quality.
How to compress PDF step by step
- Upload the PDF file you want to shrink (drag and drop or select from disk).
- Select the compression level from "light" (maximum quality) to "strong" (minimum size).
- Start compression and wait a few seconds for the document to be processed.
- Compare the size before and after, then download the optimized PDF file.
When is it worth compressing PDF
- Sending documents by e-mail when the attachment exceeds the permissible limit.
- Submitting applications online (offices, banks, universities) with a file size limit.
- Publication of e-books, manuals and catalogs that are designed to load quickly.
- Archiving large sets of scans with limited disk space.
Tips for the best result
You'll save the most on documents full of photos and scans. Files composed mainly of text are already well compressed, so the reduction will be smaller. If you care about printing, choose a gentler compression level; For sending by e-mail or publishing online, feel free to use a stronger setting.
FAQ
Does PDF compression reduce quality?
Text and vector graphics remain fully sharp. Only the resolution and compression of raster images are reduced - at moderate settings, the difference is practically unnoticeable on the screen.
How much will my file shrink?
It depends on the content. Documents with scans and photos often lose weight by 70-90%, and mainly text files by several to a dozen or so percent, because they are already optimized.
Are my documents safe?
The file is processed for compression purposes and is not shared with other users. Once the result is downloaded, you can delete it from your device.
Are there limits on the size or number of files?
The tool supports typical office documents. Very large files may require some processing time - it is best to compress them one at a time.
Will bookmarks and links be preserved?
Yes, the logical structure of the document (text, links, bookmarks) is preserved - primarily the graphic layer is optimized.