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Smart PDF optimization: image downsampling, redundant object cleanup, stream compression
Details
Compress and optimize PDF size using Ghostscript and qpdf pipeline.
Optimization steps:
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
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Ready for a run
Tool usage guide
Reduce the file size of your documents with our professional-grade PDF compression tool. By leveraging advanced Ghostscript and qpdf pipelines, this utility performs intelligent image downsampling, font subsetting, and stream recompression to shrink large PDFs while maintaining visual clarity.
Background
A creator has a 50MB PDF document containing text and images intended for digital distribution.
Problem
The file is too large for standard email attachments and slow to download.
How to use
Upload the PDF, select the 'eBook (balanced)' profile, and ensure 'Linearize for Web' is checked.
quality: ebook, linearize: trueOutcome
A significantly smaller file that retains high readability and loads progressively in web browsers.
Background
An archivist needs to store hundreds of scanned documents that are currently taking up too much server space.
Problem
High-resolution scans are unnecessarily large for simple reference viewing.
How to use
Upload the file, select the 'Screen (max)' profile, and set the Image DPI Override to 110.
It depends on the profile chosen. Screen and eBook profiles reduce image resolution to save space, while Printer and Prepress profiles prioritize higher visual fidelity.
Linearization reorganizes the PDF structure so that the first page can be displayed in a web browser before the entire file has finished downloading.
Yes, you can use the Image DPI Override field to set a specific resolution, which is useful for fine-tuning the balance between file size and image sharpness.
Your files are processed locally or in a secure temporary environment and are not stored permanently on our servers.
This tool is specifically designed for PDF documents.
quality: screen, imageDpi: 110, linearize: falseOutcome
A highly compressed file optimized for minimal storage usage while remaining perfectly legible.