PDF TOOL COLLECTION
Optimize PDF Files Online
Prepare PDFs for easier sharing, storage, printing, or archiving by reducing file size or fixing interactive content.
Choose a PDF task
2 published tools
Compress PDF
Reduce PDF file size with a selectable compression level.
Compress a PDFFlatten PDF
Turn form fields and annotations into fixed page content.
Flatten a PDFCompression and flattening solve different problems
Compress PDF targets file size and may affect image quality. Flatten PDF converts form fields and annotations into fixed page content. Keep the original before either operation and review the downloaded result.
Frequently asked questions
Does PDF optimization always reduce file size?
Compression may produce a small reduction when the source PDF is already optimized.
Is flattening the same as compression?
No. Flattening fixes interactive content, while compression focuses on reducing file size.
Should I keep the original PDF?
Yes. Keep the editable or higher-quality original until the processed copy has been reviewed.