Compress PDF to Under 100 KB
or drop files here
100 KB is the tightest limit you are likely to meet, and it comes up constantly on government and examination portals. Drop your PDF in and the compressor works down through progressively stronger settings until it fits.
Can every PDF reach 100 KB?
A one or two page document with a signature, a photo or a light scan usually reaches 100 KB. A long document full of photographs will not, and no tool can make it, because below a certain point the remaining bytes are the text and fonts themselves rather than image data. If the target cannot be met you are told the smallest size the file will actually go to, rather than being handed something damaged.
Exam and recruitment portals
Many application systems cap document uploads at 100 KB, and reject anything larger without explanation.
Government forms
Identity and address documents often have to be submitted within a fixed, very small size.
Legacy web forms
Older upload widgets frequently still enforce limits set a decade ago.
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 100 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.
Can every PDF be compressed to 100 KB?
Will the document still be readable at 100 KB?
What if my scanned document will not fit?
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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