Shrink large PDF documents for email attachments, web upload limits, and fast archiving without destroying text readability.
PDF compression scans documents for high-resolution embedded graphics, unoptimized font tables, redundant metadata, and uncompressed stream objects. It applies intelligent downsampling and Flate/JBIG2 encoding to shrink file footprints by up to 85%.
Use this whenever a portal (e.g. government application, university submission, HR portal) rejects your document due to a 5MB or 10MB file limit, or when emailing multi-page invoices.
Ranked by feature completeness, privacy safety, and ease of use.
Comprehensive suite of web PDF editing, merging, conversion, and compression tools.
iLovePDF is one of the most widely used online PDF toolboxes, providing instant file compression, merging, splitting, OCR text extraction, and PDF to Word/Office conversion.
100% free online PDF toolbox with unlimited usage and offline desktop options.
PDF24 is a completely free, privacy-friendly online PDF suite that offers unlimited document compression, merging, editing, and conversion with zero paywalls.
Polished document management suite with e-signatures and OCR conversion.
Smallpdf delivers a modern, high-precision web PDF editor, offering e-signing, AI document summarization, scan OCR, and seamless cloud syncing.
In-browser interactive PDF text editing, form filling, and page extraction.
Sejda is one of the few web tools that allows you to directly edit existing text inside a PDF, fill out interactive forms, add annotations, and sign documents.
Massive all-in-one free digital toolkit for PDF, image, video, and AI writing tasks.
TinyWow is a comprehensive online utility hub offering over 200 free tools to compress PDFs, convert video formats, strip backgrounds, edit images, and write AI copy.
Common questions and practical advice for completing this task.
No. Vector text remains mathematically sharp regardless of compression level. Only rasterized images (like scanned pages or photos) are compressed according to your chosen DPI threshold.
Combine separate PDF pages, certificates, receipts, and project portfolios into an organized, unified document in custom order.
Turn read-only PDF contracts, reports, and forms into fully editable Word documents with intact paragraphs, tables, and typography.
Extract specific page ranges, separate book chapters, or divide large PDF manuals into individual stand-alone documents.
Convert scanned image PDFs into searchable, selectable, and copyable text documents using Optical Character Recognition.