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Browser-based tool

Compress PDF

Optimize PDF structure and optional metadata, with no guaranteed size reduction or image recompression.

Drop PDF files here, or browse

Up to 50 MB per file · 150 MB combined · files are processed temporarily

Structural rewrite

Reserialize eligible documents using the PDF library.

Output choices

Optimized PDF · Compression presets · Optional metadata removal

Access and credits

Sign in; successful jobs use credits and plan batch limits.

How it works

Done In 3 Simple Steps.

1

Add PDFs

Select valid documents within your current batch allowance.

2

Choose optimization

Pick a preset and review the metadata-removal choice.

3

Compare results

Process the batch and inspect each result size or already-optimized message.

Supported formats and capabilities

Know Your Output Options.

Optimized PDF
Compression presets
Optional metadata removal

FAQ

Frequently Asked Questions

Still have questions? View the full FAQ or Contact.

01

Introduction

A PDF may contain inefficient document structure or metadata that can be simplified before delivery. Compress PDF performs a safe structural rewrite. Scanned PDFs can remain large because this implementation does not downsample or re-encode embedded page images.

02

What This Tool Does

The PDF service rewrites the document using PDF-LIB serialization. Presets change object-stream and serialization behavior, and metadata removal clears selected standard fields. The service does not use the image-quality setting to recompress embedded images. Non-custom modes report an already-optimized error if no smaller result is produced.

Key features

Compress PDF Features

Choose a compression preset and whether to remove metadata. Treat these as document-structure settings, not a guarantee of a particular image DPI or byte size.

Structural Rewrite

Reserialize eligible documents using the PDF library.

Preset Selection

Choose the optimization mode exposed by the interface.

Metadata Controls

Clear supported standard metadata fields when selected.

No Forced Rasterization

The operation does not convert all pages into images.

Size Comparison

Review actual output size rather than a promised reduction ratio.

Per-Source Results

Inspect completed and failed batch entries separately.

Benefits

Why People Actually Use It.

Beyond the headline features, here is what the tool unlocks in real workflows.

Measured Delivery Decisions

Check whether a structural rewrite helps an upload budget.

Metadata Hygiene

Remove selected document fields when appropriate for a handoff.

Content Review Continuity

Keep the original and compare the rewritten PDF before replacing it.

Best practices

Use It The Right Way.

A few habits that consistently produce the best results.

  • 1Check the actual output size before assuming optimization succeeded.
  • 2Retain the original signed or archival document.
  • 3Use a dedicated scanner or editor to reduce image-heavy PDF resolution when necessary.
  • 4Review document properties after selecting metadata removal.

Helpful Resources

Guides and Official References

Use the reference below for the formats, concepts or platform rules relevant to Compress PDF. The capabilities described on this page are limited to the controls SavDown actually provides.

SavDown Service Information

Official Documentation

External documentation describes its own platform or standard and does not imply that SavDown implements every feature it documents. See the SavDown privacy policy and pricing page for account and service details.

Supported inputs

Supported Inputs and Compatibility

Up to 50 MB per file and 150 MB combined. PDF loading is capped at 500 pages per source. File count follows the batch allowance shown for your plan. Password-protected and damaged PDFs are rejected.

Unencrypted PDFValid PDF headerBrowser file upload

Common use cases

Built For Real Workflows.

Practical applications of the inputs, controls and outputs described above.

1

Submission Preparation

Try structural optimization before uploading a report.

2

Document Handoffs

Clear selected metadata fields in an approved derivative.

3

Batch Review

Identify which documents benefit from a structural rewrite.

Tips & tricks

Power-User Tips.

Small habits that save time and produce better files.

An already optimized PDF may not get smaller.
The current service does not compress embedded images according to a quality slider.
Metadata removal is not a comprehensive redaction operation.
Do not expect exact target-megabyte output.

Why choose SavDown

Why This Tool?

The useful decision here is whether a structural rewrite produces a smaller document without requiring page rasterization. Reporting an already-optimized result avoids treating every source as reducible, and the metadata choice gives you a separate document-property decision.

Your controls

Choose a compression preset and whether to remove metadata. Treat these as document-structure settings, not a guarantee of a particular image DPI or byte size.

Processing and privacy

Documents use private temporary uploads; cleanup is attempted, without a guaranteed deadline.

Usage requirements

Sign in; successful jobs use credits and plan batch limits.

Conclusion

Wrapping up.

Try the appropriate preset, review metadata choices and compare the actual result. Use another image-focused workflow when scanned page pixels, rather than PDF structure, dominate the file size.

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