Batch Compress

Compress multiple PDF files at once and download as a ZIP archive

100% browser-based — no upload

or drag and drop files here

Drag and drop multiple PDF files here

Max 100 MB per file

Instructions

  • Supports uploading multiple PDF files for batch compression
  • Lower compression strength means smaller file size, but quality may decrease
  • Processed files will be packaged as a ZIP archive for download
  • All processing is done locally in the browser; files are not uploaded to any server
Open source on GitHubNo data collectionFiles stay localNo server upload

Advanced option · Sponsored

Compress PDFs with advanced settings

Need to compress PDFs with specific image quality, font embedding, or batch optimization? PDFelement gives you granular control.

What you should know

Batch compression is helpful when you have several PDFs to email or upload and each one is slightly too large. The same quality setting is applied to every file, which keeps results predictable but may over-compress files that were already small.

  • One quality setting for all — choose a conservative setting if your files are mixed scans and text.
  • Memory adds up — processing 20 large PDFs at once can strain a low-memory device; split into smaller batches if needed.
  • Downloads individually — each compressed PDF is saved separately so you can rename and organize them.

Read the full batch compress guide →

This batch tool processes multiple PDFs at once, applying the same operation to every file you upload. It runs entirely in your browser — files are never sent to a server — and results are packaged for easy download.

  • Upload multiple files — drag and drop a folder or select individual PDFs to process in one go.
  • Same settings for all files — configure the operation once and it is applied uniformly across the batch.
  • Results packaged for download — processed files are bundled into a ZIP archive for convenience.

Browse all PDF tools →

About Batch Compress PDF

When you have several PDFs that are all slightly too large, compressing them one by one is tedious. Batch compression applies the same quality setting to every file and returns a ZIP archive of the smaller PDFs. This is useful for email attachments, upload forms, and archive cleanup.

Choose a compression strength based on the content. Scanned PDFs and image-heavy files shrink the most; text-only PDFs may see little change. A conservative setting is safest when the batch contains mixed scans and text documents.

The tool runs entirely in your browser. Files are never uploaded, so contracts, invoices, and reports stay private. However, processing many large PDFs at once can use a lot of memory. If the browser becomes slow, split the batch into smaller groups.

For single-file compression, use Compress PDF. If you need more control over image resolution or OCR, a desktop tool like Wondershare PDFelement is better.

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