Why publish the test cases?
A tool page can claim that an operation works. A test case is more useful because it states the input, action and expected result. Pageivo uses synthetic numbered pages and non-sensitive sample content so testing does not depend on private user documents.
PIVO-01: Merge preserves page sequence
Input: Three synthetic PDFs containing 2, 3 and 1 numbered pages
Action: Merge in A → B → C order
Check: Result has 6 pages and visible sequence A1, A2, B1, B2, B3, C1
PIVO-02: Extract follows requested range
Input: Ten-page PDF with a large printed page identifier on every page
Action: Extract 2,5-7,10
Check: Result has 5 pages in the order 2, 5, 6, 7, 10
PIVO-03: Delete removes only selected pages
Input: Eight-page numbered PDF
Action: Delete 2,4-5
Check: Result contains pages 1, 3, 6, 7, 8 and source remains unchanged
PIVO-04: Reorder can move and repeat pages
Input: Four-page numbered PDF
Action: Use order 3,1,2,4,2
Check: Result has 5 pages and page 2 appears twice at the requested positions
PIVO-05: Compression trade-off is visible
Input: Image-heavy scan with small 10 pt text, signature and grayscale photograph
Action: Create copies with each compression preset
Check: Compare output bytes and inspect small text/signature at 100% zoom; document that page rasterization removes selectable source text
PIVO-06: Metadata fields are cleared
Input: PDF with test Author, Title, Subject, Keywords, Creator and Producer values
Action: Run Remove Metadata
Check: Inspect output document properties and confirm common information fields are blank/reset while visible page text remains
PIVO-07: PDF to JPG page count
Input: Three-page PDF mixing portrait, landscape and vector text
Action: Convert PDF to JPG
Check: Receive three image files; each corresponds to the correct source page and can be opened independently
PIVO-08: Password protection requires credentials
Input: Unencrypted synthetic PDF with non-sensitive test text
Action: Protect using a unique test password
Check: Compatible reader refuses normal opening without password and opens successfully with the correct password
What these tests do not prove
PDF is a broad format with forms, signatures, attachments, encryption variants, unusual fonts and many other structures. Passing representative tests does not mean every possible PDF is supported. Important documents should always be reviewed after processing, and browser memory can limit very large files.