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Compress PDF to 1MB

Job applications, email attachments and student forms. Prepare the closest 1 MB output locally before download.

Drop files here Press Ctrl + V to paste screenshots/files, or select files

Files stay in your browser. Supported: PDF, JPG, PNG, WebP and screenshots.

SENNA BrainWaiting for your document.

Compress PDF Workspace

Click a page to preview. Drag cards to reorder, or use ← → on each page card.

0 pages
✓ Browser-local basic processing ✓ Visual page review before download ✓ Works with PDF, JPG, PNG, WebP ✓ No fake OCR or forced paywall

SENNA PDF guide

Compress PDF to 1MB online for upload portals

Compress PDF to 1MB helps users prepare upload-ready files for strict portals. SENNA builds readable size options locally and helps you pick the closest 1 MB output before final download.

How to use Compress PDF

  1. Upload or paste your PDF file.
  2. Wait for SENNA to analyze the source size.
  3. Click Prepare Size Options.
  4. Choose the best output size and download the compressed PDF.

Best use cases

  • Reduce scanned application files for online submission.
  • Prepare smaller PDFs for email, office systems and mobile sharing.
  • Check approximate output size before final download.

Privacy-first workflow

SENNA PDF basic tools work inside your browser memory. We removed browser-vault restore logic so Clear truly clears the current workspace and users upload again when they start a new tool.

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Helpful document guides

SENNA GuideCompress PDF to 100KB for online formsLearn how to reduce PDF size close to 100KB for forms and uploads using SENNA PDF browser-local tools.SENNA GuideCompress PDF to 1MB for application uploadsReduce PDF files to around 1MB for visa, school, bank and office uploads using SENNA PDF.SENNA GuideMerge documents for visa or study applicationPrepare one clean PDF from certificates, transcripts, passport, citizenship and scanned documents using SENNA PDF.

Compress PDF FAQs

Can SENNA compress a PDF to 100KB?

SENNA can prepare smaller versions where possible, but very image-heavy scans may not reach 100KB without reducing visual quality.

Will compression change my document text?

The basic browser compression focuses on rebuilding and optimizing the PDF. Always preview important documents before submission.

Does SENNA upload my PDF?

For included basic tools, processing happens in your browser memory.

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