PDF Compressor

Batch compress PDFs · text, layout & fonts preserved

Tooltron hard at work
Drop PDF files here
or click to browse — multiple files supported
Real Size Reduction
Shrinks even image-heavy PDFs significantly, with control over the trade-off between file size and sharpness.
Four Compression Levels
Choose Low, Medium, High, or Maximum — each tuned to a different balance of size and image quality.
Batch, Then ZIP
Drop in a whole folder of PDFs, compress them together, and download every result in a single ZIP.
Layout Stays Intact
Text, fonts, and page structure are preserved exactly — only embedded images are optimized.
Fully Private
Every PDF is compressed locally in your browser using open-source libraries — nothing is ever uploaded.
Completely Free
No account, no watermark, and no limit on how many PDFs you compress.

How to Compress a PDF?

  1. 1.Drop your files onto "Drop PDF files here", or click to browse — add as many PDFs as you need.
  2. 2.Pick a compression level: Low, Medium, High, or Maximum.
  3. 3.Click "Compress Files", then download each PDF or grab them all as a ZIP.
Report.pdf
Scan.pdf
18.4MB3.9MB

Batch Compress Every PDF in One Go

Drop in a stack of PDFs — contracts, scans, reports — and Tooltron compresses every file in the batch, then bundles the results into a single ZIP so you're not downloading one at a time.

Low75%
Medium55%
High40%
Maximum28%

Four Levels of Compression, Your Call

Low keeps files close to lossless, Maximum gets the smallest possible output — pick the level that fits the document, and Tooltron applies it consistently across every page.

Why Our PDF Compressor Stands Out: Fast, Private, Batch-Ready Compression

Built for Whole Batches
Upload a folder's worth of PDFs and Tooltron compresses every one in sequence, tracking size savings for each file as it finishes. When the batch is done, download everything at once as a single ZIP instead of clicking through file by file.
Four Levels, Real Control
Low re-compresses the file's internal structure with almost no visible change, while Maximum rasterizes pages down to the smallest possible size. Switch between levels any time before compressing to match the document's purpose.
Text and Layout Untouched
Compression targets embedded images, not the words on the page — fonts, layout, and structure come through exactly as they were. Your compressed PDF still reads and prints the same as the original.
Nothing Ever Leaves Your Browser
Every PDF is processed locally using open-source libraries running on your own device, so contracts and sensitive documents are never transmitted anywhere. There's no account, no upload step, and no server in the loop at all.