Merge PDF files
Combine pages from multiple PDFs in the order the files are selected.
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Files & PDF
Optimize PDF structure
Rewrite a PDF with object streams and report whether the resulting file is smaller.
Free to useProcessed on your device
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About this tool
Rewrite a PDF with object streams and report whether the resulting file is smaller.
How to use
- Choose the local file you want to process.
- Set the available options, then run the tool.
- Inspect the result and download the output. Your original file is unchanged.
PDF processing stays in this browser. Password-encrypted PDFs are not supported. Save a copy: editing can invalidate digital signatures. Maximum input is 100 MB and 1,000 pages; image output has lower page limits. This is structural optimization, not image recompression. A file can become larger; retain the original if it is smaller.
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