Understand the source
PDF Size Breakdown reports page counts, average bytes and likely image-only pages. Its findings are estimates, not an exact object-by-object accounting.
PDF Size BreakdownOptimize and Compress PDF Files
A PDF may be large because of scanned page images, embedded fonts, complex graphics or simply inefficient structure. Start with PDF Size Breakdown when you want clues about the document; use Compress PDF when the goal is a measured smaller file. A small text-based PDF and a photo-heavy scan respond very differently to compression.
PDFHope runs these checks in your browser. The compression tool compares actual output size with the original and tells you when no smaller safe result was found. It does not promise an arbitrary target size or a universal reduction percentage.
Choose a workflow
Optimize PDF tools
How to choose the right tool
Preserve text where practical
Start with Recommended compression. It favors structural savings and preservation-oriented treatment of searchable pages.
Compress PDFPrioritize visual size
Strong or Maximum may flatten pages and reduce fine detail. Use these only when the loss of searchability or interactivity is acceptable.
Compress PDFCommon use cases
- Reduce a scan-heavy report before attaching it to an email, then inspect the result at readable zoom.
- Check why a nominally short PDF is large before trying aggressive compression.
- Keep a searchable archival copy and make a separate smaller visual copy for sharing when necessary.
Searchability is a quality dimension
Aggressive rasterization can turn selectable text into page images. If a scanned document was processed with OCR PDF, preserve that searchable original before trying Strong or Maximum compression. A smaller file is not always a better file for accessibility or reuse.
Check the actual result
Inspect the original and output sizes shown by the tool. A PDF that is already optimized may not shrink, and high-resolution scans may trade sharpness for bytes. Review small text, diagrams, links and forms after download. Rewriting can invalidate certificate-based signatures.
Optimize PDF FAQ
Why did my PDF not get smaller?
The source may already use efficient compression, or a safe rewrite may not save enough bytes. PDFHope reports measured results rather than claiming a reduction it did not achieve.
Will compression keep searchable text?
Recommended aims to preserve text-based pages where practical. Strong and Maximum can flatten content, so inspect the output before sharing.
Is PDF Size Breakdown an exact file-object report?
No. It uses page-level and image-complexity clues available in the browser; exact internal object sizes are not exposed by the current workflow.