PDF tools

Compress PDF

Shrink PDF files for uploads, email attachments, and document portals.

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How to use

1
Choose a PDF file.
2
Pick the target compression level.
3
Download the smaller PDF.

Quick answer

Compress PDF reduces the file size of your PDF documents by optimizing images and text metadata. It is perfect for getting files under strict email attachment limits or meeting government and corporate portal upload requirements.

Key features

Significantly decreases the disk footprint of scanned sheets and photo-heavy PDFs.
Processes everything inside your local web browser, preventing file uploads and server leaks.
Allows choosing custom compression targets to balance final document quality and size.
Optimizes structural metadata, streams, and fonts to shave off unneeded bytes.
Keeps original page sequences, orientation, formatting, and hyperlinks intact.
Preserves your original file untouched by creating a completely new compressed download.

About this tool

When document sizes swell because of embedded high-resolution scans, images, or massive structural metadata, sharing them becomes a chore. Email attachments get blocked by corporate servers, and official upload portals often enforce strict file size caps like 5MB or 10MB. Our PDF Compressor solves this by stripping unneeded metadata, compressing embedded graphics, and refactoring file streams directly in your browser. Because no server upload occurs for supported files, it is the ideal choice for private paperwork, financial reports, or legal attachments where data security is non-negotiable. Please note that very heavy scanned documents might hit local tab memory limits, and password-protected files must be unlocked before compression.

Common scenarios

Email attachment limits

Shrink large PDF manuals or contract drafts so they easily pass through standard 10MB or 25MB mail server boundaries.

Meeting upload portals

Optimize tax files, job application portfolios, or medical scans to meet strict government or school file-size guidelines.

Server and storage savings

Compress client folders, invoice records, and archived slides to save disk space and speed up backup times.

FAQ

Can I compress a PDF for email?

Yes. Use it to create a smaller copy for common email and upload-size limits.

Will compression change the document?

Compression can reduce embedded image quality, so the tool will show clear quality controls.

Does it work with password-locked files?

No. Any encryption or password lock must be removed from the PDF before compressing.

Will my links and formatting be lost?

No. Standard links, text streams, bookmarks, and font layouts are maintained—only duplicate metadata and image data are optimized.

How much smaller will my PDF be?

This depends heavily on the file content. Text-only PDFs may see a small reduction, while files with high-resolution scans or photos can often shrink by 50% to 80%.

Is there a file size limit?

There is no server-side upload limit since processing is local, but very heavy files are bounded by your browser's available memory.