Z
ZenPDF
Hosted
Usage & Capacity

Know every limit before you upload.

ZenPDF is fully free for all tools. Limits exist only to keep shared infrastructure stable and available for everyone.

How limits are decided

Use this page when

A job failed due to limits.

Use this page when

You are planning larger file batches.

Use this page when

You need current pool status before OCR/PDF-A.

Status: AvailableAll tools are active and operating within the monthly budget.Loading latest snapshot...

Your daily usage

ANON

Metrics reset daily and are enforced before processing begins.

Jobs today

0 of 5 jobs used

0%

Processing minutes

0 of 10 minutes used

0%

Max file size

25.0 MB per file

33%

Max files per job

1 files per job

33%

Concurrent jobs

1 jobs at once

50%

Heavy tools availability

OCR + PDF/A enabled

On

Shared daily pool

This pool is shared across all users and is enforced server-side.

Pool jobs used

0 of 0 used · 0 remaining

0%

Pool minutes used

0 of 0 used · 0 remaining

0%

Pool concurrency cap

0 jobs can run concurrently

0%

Monthly budget usage

0% of the monthly budget used

0%
Access tiers

Transparent limits for fair use.

Limits reset daily and are enforced server-side for every tool.

ANON

Anon access

No sign-in required. Jobs stay tied to this browser only.

  • 1 file per job
  • 25.0 MB per file
  • 5 jobs per day
  • 10 minutes per day
  • Local-only job history
Sign in to unlock higher daily caps and saved job history.
SIGNED IN

Signed-in access

Google sign-in with higher daily limits and saved job history.

  • 3 files per job
  • 75.0 MB per file
  • 30 jobs per day
  • 60 minutes per day
  • Saved job history
All tools are free. Limits are only for shared fair-use.

Friendly error catalog

When a limit is hit, ZenPDF responds with a stable code and a plain-language message.

USER_LIMIT_FILE_TOO_LARGE

This file is larger than your plan allows.

Click to view guidance

Compress the file or split it into smaller parts.

USER_LIMIT_SIZE_REQUIRED

We could not verify the file size for this upload.

Click to view guidance

Try uploading the file again or use a smaller file.

USER_INPUT_INVALID

Some of the provided options are invalid.

Click to view guidance

Review the tool inputs and try again.

USER_LIMIT_MAX_FILES

This job has more files than your plan allows.

Click to view guidance

Reduce the file count or split into multiple jobs.

USER_LIMIT_CONCURRENT_JOBS

You already have the maximum number of active jobs.

Click to view guidance

Wait for existing jobs to finish, then retry.

USER_LIMIT_DAILY_JOBS

You have reached today’s job limit.

Click to view guidance

Wait until tomorrow or run ZenPDF locally for unlimited jobs.

USER_LIMIT_DAILY_MINUTES

Daily processing minutes are fully used.

Click to view guidance

Try again tomorrow or run ZenPDF locally.

USER_SESSION_REQUIRED

We could not confirm your session for this job.

Click to view guidance

Refresh the page or sign in, then retry.

SERVICE_CAPACITY_TEMPORARY

ZenPDF is temporarily at capacity.

Click to view guidance

Retry in a few minutes or run the local stack.

SERVICE_CAPACITY_MONTHLY_BUDGET

ZenPDF hit its monthly processing budget.

Click to view guidance

Use the local stack or wait for the new budget cycle.