Reduce image resolution inside a PDF when the file is larger than it needs to be
Many PDFs are large because of oversized images rather than complex text or structure. Downsampling cuts image resolution to a more practical level, making the document easier to upload, email, and store.
Follow the shortest path for this exact task, then jump into the tool when you are ready to compress the file.
Upload the image-heavy PDF
Choose a target resolution or size profile
Run the downsampling workflow
Download the smaller PDF for delivery or storage
Related searches
Compress PDF for Uploads and Form Submissions
Reduce PDF size for portals, applications, resumes, and document uploads that reject large files
Compress PDF for Email — Reduce File Size
Shrink PDF files to fit within Gmail, Outlook, and Yahoo email attachment limits
Analyze What Makes a PDF File Large
Break down the file size so you know whether images, fonts, attachments, or structure are causing the problem
Open the tool page to review Pro access, batch features, and advanced workflow options.
Free plan includes 3 contracts/month with legally binding eSignatures. No credit card.