How long does CNKI detection take for results?

Usually 30 minutes to 2 hours, peak season (graduation season) may take 4-8 hours. Recommend testing in advance, not on the last day.

Can report be downloaded multiple times?

Yes. Within report validity period (usually 30 days) can download multiple times. But after expiration, report automatically becomes invalid.

What is school self-built database?

School self-built database is a thesis comparison database established by school, including previous graduation theses from school. If previously tested on CNKI, self-built database will exclude your previous research, making detection results more accurate.

Problem Solving

CNKI Thesis Submission Failed/Report Cannot Parse? Common Problems and Solutions

Encountering system errors, report parsing failures, format not recognized during CNKI thesis submission? This guide summarizes common CNKI submission and report interpretation issues.

What this page helps you do first

Common submission failure causes
Report parsing solutions
PDF encryption problem handling

Submission failure issues

Word/WPS shows "format detection failed": check for macro code, field code, delete and resubmit
Prompt "file exceeds size limit": usually single file limit 15-30MB, compress images and resubmit
Prompt "file is occupied": close file and re-upload, or restart computer and retry
Prompt "file format not supported": confirm school required format, usually doc/docx/PDF
Network interruption causing submission failure: switch network or use wired connection to retry

Report parsing failure issues

PDF report cannot open: try Adobe, Foxit other mainstream PDF readers, do not use browser directly
Report shows blank or garbled: possibly PDF encryption, try removing password protection and re-upload
Report page numbers incorrect: CNKI reports have two versions, confirm which version school requires
Report cannot download: browser blocked pop-ups, close blocker and retry

PDF decryption methods

If PDF has open password or permission password set, detection system cannot parse. Need to remove password first:

Method 1: Adobe Acrobat - tools-protect-encrypt-remove security settings

Method 2: Online tools like iLovePDF, Smallpdf (note privacy security)

Method 3: Print to new PDF: file-print-select Microsoft Print to PDF

Report result abnormality issues

Total text copy ratio is zero: thesis not detected for repetition, possibly wrong version submitted
Tables flagged red: table content also participates in detection, need to reduce plagiarism in tables
Citations flagged red: citation format not standard causing system unable to recognize, adjust citation format
Results inconsistent with previous: each detection database updates, results may differ slightly

Preventive measures

Before submission, open with Word/WPS to confirm normal display
Save as PDF and retry, ensure PDF has no password protection
Close document macro and field code functions
Test one version in advance, confirm normal parsing before submitting final version

Frequently asked questions

How long does CNKI detection take for results?: Usually 30 minutes to 2 hours, peak season (graduation season) may take 4-8 hours. Recommend testing in advance, not on the last day.
Can report be downloaded multiple times?: Yes. Within report validity period (usually 30 days) can download multiple times. But after expiration, report automatically becomes invalid.
What is school self-built database?: School self-built database is a thesis comparison database established by school, including previous graduation theses from school. If previously tested on CNKI, self-built database will exclude your previous research, making detection results more accurate.