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PDF Merge
Combine several PDFs into one file, in the order you choose.
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PDF Compress
Strip metadata and rewrite object streams, and see the resulting size.
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Processed locallyAbout PDF Compress
Strips metadata (title, author, producer) and rewrites the object streams. This is lossless structural compression, so scan-heavy PDFs will not shrink much — stated on the page as well.
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It does two things: **strip metadata and rewrite object streams**. Title, author, subject, keywords, Producer and Creator are cleared, and many small objects are packed into an object stream. **Page content is untouched** — no image re-compression, no downsampling.
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The result reports the before and after sizes with a percentage: smaller is `-X%` and **larger is `+X%`**. Text-heavy PDFs usually shrink a little, image-heavy ones barely move, and an already-optimised file can even grow.
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All local, nothing uploaded; the download is named original-compressed.pdf.
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Choose a PDF
The original size is shown right away, ready for comparison.
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Run the compression
It finishes in seconds and reports the new size and the percentage change.
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Download — or keep the original
If the file got bigger, it had no removable redundancy; keep the original.
Because the images inside the pages are not re-compressed. In a scanned or photographic PDF the images are over ninety percent of the bytes, and clearing metadata saves a few KB at most. A real reduction needs downsampling or JPEG conversion — which is **lossy** — and this tool deliberately does not make that choice for you. Use something like Ghostscript's `-dPDFSETTINGS=/ebook` when you want it.
Usually it helps: titles and authors often carry personal information, so this doubles as a light redaction. But if a workflow depends on those fields (search metadata in a document system, publisher or copyright notices), they will be gone — skip this step, or restore them afterwards.
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