PDF Compressor
Reduce PDF file size with practical optimization profiles while keeping your documents usable. Processing runs in your browser instead of through a GetTransfy conversion API.
Drop PDF files here
or click to choose PDF files
Tip: PDFs that are already optimized may show little or no reduction. The tool keeps the smaller file when optimization would make the document larger.
Compress PDFs with a clear quality trade-off
PDFs can contain text, vector graphics, fonts, images and document metadata. A useful compressor should optimize what it can without pretending that every PDF will shrink by the same amount.
Balanced optimization
Rewrites the PDF with object streams and removes unnecessary document metadata where supported, while avoiding page rasterization.
Quality-first option
Use the lighter profile when preserving the existing document structure is more important than chasing the smallest possible file.
Size-first option
Use stronger structural optimization when the source PDF contains redundant objects or metadata that can be reduced safely.
Four simple steps
No account is required to start the browser-side workflow.
Add PDFs
Drop one or several PDF files into the compressor.
Select a profile
Choose quality, balanced, smaller or maximum structural optimization.
Optimize locally
The browser loads the PDF engine and rewrites the document locally.
Compare & download
Review original and output sizes, then download the smaller result.
Pick the profile for the job
Different PDFs have different compression opportunities. CloudConvert documents separate profiles for web, print, archive, scanned PDFs and maximum reduction; this tool keeps a simpler browser-side profile system focused on safe structural optimization. citeturn0search1
Web & email
Start with Balanced or Smaller File for PDFs that mainly need to be easier to share or store.
Documents with text
Use Best Quality when selectable text, vector elements and existing layout are especially important.
Scanned documents
Scanned PDFs can be image-heavy. Structural optimization may have limited impact when the images are already compressed.
PDF Compressor FAQs
Practical answers about compression profiles, privacy, quality and compatibility.
Can I compress a PDF without uploading it to a server?
The tool is designed to process PDFs in the browser using client-side libraries loaded when compression starts. Your PDF is not sent to a GetTransfy conversion API.
Which PDF compression profile should I choose?
Balanced is a practical starting point, Smaller File prioritizes size reduction, and Best Quality prioritizes preserving the original document appearance.
Will PDF compression change the text in my document?
The standard optimization path preserves the PDF structure as much as the browser-side PDF library allows. The stronger raster mode is not used by default because rasterizing can turn selectable text into page images.
Can I compress scanned PDFs?
Yes, PDFs containing scanned pages can be processed. The amount of size reduction depends on the images and structure inside the source PDF.
Can I compress multiple PDF files at once?
Yes. You can add multiple PDF files and process them using the selected compression profile.
Will hyperlinks and form fields always remain unchanged?
PDF optimization can affect advanced interactive features depending on the source document and browser-side PDF library. Important interactive PDFs should be checked after compression.
Can a compressed PDF become larger?
Yes. Some PDFs are already highly optimized. The tool compares the generated file with the original and keeps the original when the optimized copy is not smaller.
Does PDF compression reduce image quality?
The standard profiles focus on structural optimization rather than deliberately rasterizing every page. The amount of visible change therefore depends on the PDF content and the selected profile.
Can I compress a password-protected PDF?
Encrypted or password-protected PDFs may not be readable by the browser-side library without the required password. The tool will report an error instead of silently producing an invalid file.
Why does one PDF shrink much more than another?
PDF size depends on embedded images, fonts, duplicated resources, metadata, object structure and existing compression. A PDF that is already optimized may have little room for further reduction.
Make your PDF easier to share
Choose a practical profile, optimize the document in your browser, compare the result and download the smaller PDF.