Make your PDF smaller instantly. Free, fast, no account.
Reduce PDF file size by up to 80 percent, depending on file type. Text stays sharp, image-heavy PDFs may show minor quality changes with stronger compression, and every download stays clean. No sign-up, no watermarks, no file count limits.Visit Example
or click to browse • up to 50 MB • no account needed • works on all devices
No software to download. No account to create. Results in seconds.
Drop your PDF or click to browse. Accepts files up to 50 MB. No account sign-in required at any point — just open the tool and upload.
Select Standard for balanced quality and size, or Maximum for the smallest possible file. Both options are free with no restrictions.
Your compressed PDF downloads in seconds. Clean output, no watermarks, no PDFPro branding — just your file, made smaller.
No confusing limits. No hidden paywall. Here is what you get when you reduce PDF size.
Text in PDFs is usually stored as vector data, not as pixel images. Compressing a PDF keeps text sharp at normal viewing sizes. Image data is optimised to reduce file size, especially in scanned and photo-heavy PDFs.
Standard compression reduces file size 40 to 60 percent while keeping images nearly identical to the original. Maximum compression reduces size 60 to 80 percent — ideal when file size matters most and some image quality reduction is acceptable.
PDFPro runs entirely in your browser — nothing to install, no plugin required. All uploads use 256-bit TLS encryption. Your file is permanently deleted from our servers 1 hour after processing.
Short, clear answers for users and AI search results, written directly on the page.
The best way is to upload the PDF, choose a compression level based on your quality needs, then download the smaller file. Use Standard compression for everyday sharing and Maximum compression when an upload portal has a strict file size limit.
Yes. PDF text usually remains sharp because it is stored as vector data. Compression mainly reduces embedded image data, so text-heavy documents stay clear while scanned or photo-heavy PDFs may show small image changes at stronger settings.
Scanned PDFs, image-heavy reports, catalogs, portfolios, presentations, and photo-based documents usually compress the most. Text-only PDFs may already be small, so the reduction can be lower.
Both levels are completely free. Your choice depends on how small you need the file and how important image quality is.
Reduces file size while keeping images looking nearly identical to the original. You would need to zoom in closely to notice any difference. Best for everyday document sharing.
Applies stronger image optimisation to achieve the smallest possible output. Text remains sharp. Image quality may show some reduction on photo-heavy documents when viewed closely.
PDFPro helps you reduce PDF size for common upload limits. Results depend on the original document, especially the number of scanned pages and images.
Best for very small forms, ID documents, and one-page scans. Use Maximum compression and remove unnecessary pages if the original file is image-heavy.
Useful for online application portals, certificates, scanned IDs, and lightweight attachments where strict upload limits apply.
A practical target for resumes, invoices, academic documents, and short reports that need to stay readable while meeting upload rules.
Ideal for multi-page documents, presentations, proposals, and portfolios that need a smaller size without heavy quality loss.
Scanned PDFs often shrink significantly because image data takes most of the space. Maximum compression is usually best for scans.
Start with Standard compression for quality. Switch to Maximum only when you need the smallest possible file for a fixed upload limit.
From email attachments to government portals — these are the situations where reducing PDF size matters most.
Gmail caps attachments at 25 MB, Outlook at 20 MB. Compress large PDF reports, contracts, and portfolios to send directly without needing a cloud link.
Applicant tracking systems and HR portals commonly enforce 5 MB upload limits for CVs, portfolios, and cover letters. Compress before submitting.
Contracts, proposals, invoices, and reports are easier to send and faster to open when compressed. Smaller PDFs also download faster on mobile.
Student portals and scholarship applications often set 10 to 20 MB limits. Compress dissertations, research papers, and portfolios before uploading.
Compressed PDFs take up less space in Google Drive, Dropbox, OneDrive, and iCloud. Reduce file sizes before uploading to save storage quota.
Government portals, insurance forms, and legal submission systems regularly cap uploads at 5 to 10 MB. Compress documents to meet these requirements.
Compressing a PDF sounds simple, but most free tools online make it frustrating. Some apply an hourly task limit. Some require an account. Some stamp a watermark on the output unless you pay. PDFPro removes all of those barriers. Upload your PDF, choose a compression level, and download. No account, no paywall, no watermark, ever.
A PDF file can contain several types of data: text, fonts, vector graphics, raster images, metadata, and embedded objects. Compressing a PDF primarily targets raster images, which are typically the largest component of most PDFs. PDFPro resamples and re-encodes image data to reduce its storage size while keeping the rest of the document structure intact.
Large PDF files are almost always caused by high-resolution images embedded in the document. Scanned PDFs, photo portfolios, product catalogs, and presentation exports are common examples. A single scanned page at 300 DPI can easily exceed 1 MB on its own.
Because PDFPro runs in the browser, there is no software to install and no operating system requirement. The compress PDF tool works equally well on macOS, Windows, Linux, iPhone, iPad, and Android.
Open PDFPro Compress PDF, upload your file, choose Standard or Maximum compression, then download the smaller PDF. It works in any browser with no account, no software installation, and no watermark.
Use Standard compression when quality matters most. It reduces image data while keeping text, fonts, and vector graphics sharp. Photo-heavy PDFs may show minor image changes only with stronger compression.
Yes. Upload your PDF and use Maximum compression for strict size goals such as 100KB or 200KB. If the file is image-heavy and still too large, remove unused pages or compress images before trying again.
Results depend on the document. Text-heavy PDFs may reduce only slightly, while scanned or image-heavy PDFs can often become 40 to 80 percent smaller.
No. PDF text is usually vector-based, so it remains sharp after compression. Compression mainly affects embedded images and scanned page graphics.
Standard compression balances small file size with image quality. Maximum compression creates the smallest file by applying stronger image optimisation, which can slightly reduce image sharpness.
PDFPro accepts PDF files up to 50 MB for compression. You can compress multiple PDFs and there is no daily task limit.
No. PDFPro does not add watermarks, logos, or branding to compressed PDFs.
Uploads use encrypted transfer and files are automatically deleted after processing. Avoid uploading highly sensitive documents to any online tool unless your organisation allows it.
Yes. PDFPro runs in the browser, so it works on iPhone, iPad, Android, macOS, Windows and Linux without installing an app.
Yes. PDFPro supports batch compression so you can reduce the size of multiple PDF files in one session.
Upload the PDF and start with Standard compression. If the compressed PDF is still above the email attachment limit, run Maximum compression or remove unnecessary pages before sending.
No account. No watermarks. No file limit. Standard and Maximum compression are both completely free.