Compress PDF to Under 500 KB
or drop files here
500 KB is a common ceiling on application portals, and it is comfortably reachable for most real documents. The compressor stops at the first setting that gets you under it, so you keep as much quality as the limit allows.
Can every PDF reach 500 KB?
Most multi-page scans, certificates and application documents reach 500 KB without visible loss. Documents built around full page photographs may need the stronger end of the ladder, which shows as softer images while the text stays perfectly sharp.
University applications
Transcript and certificate uploads are frequently capped in the hundreds of kilobytes.
Visa and immigration portals
Supporting document uploads often have to fit a fixed budget per file.
Job application systems
Applicant tracking systems sometimes reject anything larger, and your text staying selectable keeps you parseable.
Smaller, without flattening your text.
Most compressors reach a size target by turning every page into a picture. That works, and it destroys the document: the text stops being text, so it can no longer be searched, copied, read aloud or parsed by an applicant tracking system.
Measure the real size
Each image is checked against the size it is actually drawn at on the page. A photo placed two inches wide needs a fraction of the pixels it is usually stored with.
Try several encodings
Every image is encoded more than one way, and the smallest result that still looks right is kept. Flat diagrams and photographs need different codecs, so neither is forced into the wrong one.
Stop at the first fit
Settings get progressively stronger until the file is under 500 KB, then it stops. You keep as much quality as the limit allows rather than always getting the harshest setting.
Need a different size?
Pick the limit you actually have to meet, or set any figure you like on the main compressor.
Questions answered.
Is 500 KB enough for a multi-page scan?
Will my resume still be read correctly by an ATS?
How does it hit an exact size?
Will the text still be selectable and searchable?
Is my file uploaded anywhere?
What if the target cannot be reached?
More tools you might need.
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