Compress PDF Online - Reduce PDF File Size | PDFSwift

CompressPDF

Shrink the size of your PDF files while maintaining optimal quality.

PDF-Operationen

CompressPDFSizeOnline —schnell,privatundkostenlos.

Reduce the file size of your PDF documents without losing quality. Optimize images and compress PDFs client-side, 100% free.

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lockLokal im Browser verarbeitet — Dateien werden niemals auf Server hochgeladen

Upload a PDF file to compress

Click to browse or drag & drop a file here

Max file size: ~200MB

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Alle PDF-Tools

12 weitere kostenlose Tools — alle browsernativen, ohne Uploads

PDF-Operationen

Merge PDF

Combine multiple PDF files into a single document in your preferred order.

PDF-Operationen

Split PDF

Extract specific page ranges or split each page into a separate document.

PDF-Operationen

Rotate PDF

Rotate one or all pages of your PDF document in any direction.

PDF-Operationen

Delete PDF Pages

Remove unwanted pages from your PDF document and download the cleaned file.

PDF-Operationen

Reorder PDF Pages

Rearrange pages of your PDF document into your desired sequence easily.

PDF-Konvertierung

JPG to PDF

Convert JPG images to PDF documents with customizable margins and layouts.

PDF-Konvertierung

PNG to PDF

Convert PNG images to high-quality PDF files with zero loss of transparency.

PDF-Konvertierung

Images to PDF

Combine multiple JPG, PNG, WebP, or GIF files into a single consolidated PDF document.

PDF-Konvertierung

PDF to JPG

Convert PDF document pages into high-quality JPG images directly in your browser.

PDF-Konvertierung

PDF to PNG

Render PDF document pages into lossless PNG files with transparent backgrounds.

PDF-Operationen

Edit PDF

Add text, draw, and annotate on your PDF pages directly in your browser.

PDF-Operationen

Add Signature

Easily draw, type, or upload your signature and place it anywhere on your PDF.

Wie benutzt man Compress PDF?

1

Select your PDF file and upload it to the workspace.

2

Select your compression level (Recommended, Extreme, or Low).

3

Click 'Compress PDF' to compress the file locally.

4

Download your optimized PDF file instantly.

Wichtigste Vorteile

Maintain Visual Quality

Our compression algorithm selectively compresses images and unnecessary PDF structures without rendering text fuzzy.

Instant Compress

No waiting in upload queues. Files are processed locally and ready to download in a snap.

Privacy Assured

Since your document is compressed inside your browser, your private data never leaves your machine.

100 % sichere lokale Verarbeitung

Ihre Dateien verlassen niemals Ihr Gerät. Alle Vorgänge werden mithilfe von WebAssembly in Ihrem Browser ausgeführt. Keine Uploads. Kein Tracking. Immer kostenlos.

Häufig gestellte Fragen

It depends on the original content. If your PDF contains high-resolution images, we can often reduce the size by 50% to 80% without noticeable quality loss. Text-only PDFs compress less but are already small.

No, text remains fully vector-based and searchable. Only heavy image payloads and metadata structures are compressed.

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Your browser.
Your files.

How it works. (01)

Select your PDF file and upload it to the workspace.
Select your compression level (Recommended, Extreme, or Low).
Click 'Compress PDF' to compress the file locally.
Download your optimized PDF file instantly.

Why PDFSwift. (02)

Maintain Visual Quality
Instant Compress
Privacy Assured

Privacy first. (03)

Zero file uploads to any server
WebAssembly runs in your browser
No account or sign-up required
100% free, forever