Drop one or multiple PDFs to see file size, pages, size per page, compression advice, and a visual comparison chart — all in your browser.
Or click to browse · Multiple PDFs supported · Up to 10 files at once · No data uploaded
| # | Filename | File Size | Pages | Size / Page | Rating | Bar | Advice |
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Diagnose bloated PDFs and compare files before sending or archiving.
A colour-coded bar chart compares all uploaded PDFs at a glance — instantly spot which file is bloated vs. well-optimized.
The most useful metric for diagnosing oversized PDFs — our tool calculates average KB per page and rates it Good, Medium, or Large.
Each file gets tailored compression recommendations based on its size-per-page score — actionable tips, not just numbers.
Check up to 10 PDFs simultaneously. Compare documents from different sources side-by-side to pick the best version to send.
Drag one or multiple PDF files into the drop zone. Up to 10 files can be analysed simultaneously — no upload required.
Each file's size, page count, size-per-page, and efficiency rating are computed instantly using PDF.js in your browser.
Read the size comparison chart, per-file advice, and click the link to compress any bloated files with our Compress PDF tool.
PDF file size is determined by the content embedded within it: images are typically the biggest contributor, followed by embedded fonts, then actual text and vector graphics. A text-only PDF should rarely exceed a few KB per page. When PDFs grow unexpectedly, it almost always means there are large uncompressed images inside.
Most email services cap attachments at 25 MB. If your PDF exceeds 10 MB, compress it before sending — recipients on mobile connections will thank you.
PDFs published on websites should ideally be under 1 MB. Anything larger risks abandonment from slow connections. Target 72–96 DPI for images in web-facing documents.
Print PDFs need 300 DPI+ images (larger files) but digital PDFs only need 72–150 DPI. Keeping two versions prevents unnecessary size when sharing digitally.
Drop the original and the compressed version here simultaneously to verify the compression was effective and the page count is preserved before emailing the final file.