Reduce PDF file size directly in your browser. Choose Lossless, Balanced, or Maximum compression without sending your document to a file-processing server.
or click to browse from your device
Supports files up to 100MBDownsampling and compressing pages. Please keep this tab open.
Your compressed PDF is ready for download.
Your selected PDF is read into browser memory and processed on your device. Lossless mode optimizes the document structure; Balanced and Maximum may render pages as compressed images to reduce size more aggressively.
No. The selected PDF is processed in browser memory and is not sent to a SleekPDF document-processing server. Normal webpage connections remain separate from the PDF.
Start with Balanced for common reports, scans, and email attachments. Choose Lossless when preserving structure matters most. Use Maximum only when size matters more than image detail.
Text-heavy or previously optimized PDFs may contain little redundant data. Lossless mode can only optimize safe structural data; image reduction requires Balanced or Maximum.
Yes. Balanced and Maximum can rasterize page content, and any modification can invalidate digital signatures. Keep the original and test interactive features in the downloaded file.
The compressor accepts one PDF up to 100 MB. Available browser memory and document complexity can still affect a very large file on a phone or older computer.
SleekPDF keeps the workflow short while giving you control over the tradeoff between file size and visual quality.
Drag a PDF into the compressor or select one from your device. Files up to 100 MB are supported.
Use Lossless for structural optimization, Balanced for everyday documents, or Maximum for the smallest result.
Compare the file sizes, download the compressed PDF, and check it against your original before sharing.
Start with Balanced for email, forms, presentations, and general sharing. Choose Lossless when preserving the original structure matters most. Choose Maximum when file size is the priority and lower image detail is acceptable.
SleekPDF is published and maintained by SDMV for compressing and merging PDFs without sending document contents to a file-processing server. It does not require an account, subscription, or software installation.
Processing results depend on the documents. Always keep your original files and check every downloaded PDF before sharing or deleting the sources.
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PDF compression and merging run in your browser. SleekPDF does not upload document contents to a file-processing server. Selected files and generated results remain in browser memory until you close or reload the page.
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Compression and merging can change image quality, page rendering, accessibility, forms, links, bookmarks, signatures, metadata, and other PDF features. Review every downloaded file and retain your originals.
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