Running a Batch of Watermark Clean-Ups
No multi-file upload and no folder drop; what makes a large set manageable here is how many runs can be in flight at once.
Most people arrive at this page hoping for a folder picker. There is not one. The Watermark tool takes a single PNG or JPG per run, at 10 credits and an estimated 15 to 30 seconds each, and it processes that one file. If you have two hundred images, that is two hundred runs.
What makes a large set workable is concurrency rather than multi-upload. The Free plan runs one task at a time at standard speed; Starter runs two at once; Pro runs three and puts them in a priority queue; Studio runs six and includes API access. You still start each file, but several are in flight at the same moment instead of one after another.
What it does
Built for this specific job, not a generic editor.
One file per run
The tool accepts a single PNG or JPG at a time. There is no multi-select, no folder drop and no archive upload — a batch is a sequence of single runs.
Up to six in flight on Studio
Parallel task slots are what paid plans add: two on Starter, three on Pro and six on Studio, so the queue keeps moving without you waiting on each file.
A priority queue from Pro up
Pro moves your runs ahead in the queue as well as adding a third slot, which matters when a batch has a deadline rather than a spare afternoon.
API access on Studio
Studio includes API access, which is the one route for a set large enough that starting each run by hand has stopped being reasonable.
How it works
Four steps, no timeline to learn.
Count the files and multiply by ten
Credit cost is the binding constraint on any batch, not time. Fifty images is 500 credits; two hundred is 2,000, which is more than Pro provides in a month.
Clean one representative image first
Marks in a batch are usually the same mark in the same position, so one test tells you how the whole set will behave. Spend 10 credits to find out before spending 2,000.
Queue the rest across your slots
Start as many runs as your plan allows and keep them filled. On Free that is one at a time, which is fine for a handful of files and slow for a catalogue.
Spot-check the output
Do not assume a uniform result because the input was uniform. Check files from different parts of the set, especially any whose background differs from the rest.
What people use it for
The jobs this actually gets used for.
Product catalogues
A supplier or studio set where every image carries the same logo in the same corner — the ideal batch case, because one test predicts the rest.
Monthly social exports
A recurring set of images downloaded with a platform mark, cleaned before they go into a content library.
Documentation screenshot sets
Interface captures that all need the same trial mark removed before a release goes out.
Event and gallery sets
Photographs returned from a gallery or event tool with a logo applied across the whole delivery.
Why the honest answer is concurrency, not a folder
Parallel slots shorten the wait. They do not change what a batch costs.
It is worth separating two things that get conflated by the word bulk. One is how many files you can hand over in a single action, and on that the answer is one. The other is how many runs are being processed at the same moment, and that is what the paid plans change. Confusing the two is how people buy a plan expecting a folder picker and find a queue instead.
Credits are the constraint that does not move. Six parallel slots on Studio do not make a file cheaper — each image still costs 10 credits, so a batch of four hundred needs the Studio allowance regardless of how fast it runs. Throughput is what parallelism buys you; volume is what credits buy you.
The saving that actually matters is the test run. Because a batch usually means one mark in one position repeated across every file, a single 10-credit trial tells you whether the set is worth cleaning at all, and it is the cheapest insurance available against spending a whole month’s allowance on a mark that will not come off cleanly.
Credits and plans
Every tool draws on one shared credit balance.
Ten credits per image, unchanged by plan or by how many run at once. Free gives 30 credits a month — three images — with no credit card, one task at a time and standard speed. Starter at $9 gives 400 credits and two slots; Pro at $19 gives 1,000 credits, three slots and a priority queue; Studio at $59 gives 4,000 credits, six slots and API access.
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Related tools
Closely related pages on the same problem.
Frequently asked questions
Can I upload a folder or select many files at once?
No. The Watermark tool takes one PNG or JPG per run. Batch work is handled by running several at once on paid plans, not by uploading several in a single action.
How many can run at the same time?
One on Free, two on Starter, three on Pro and six on Studio. Pro and above also move ahead in the queue, and Studio adds API access.
What does a hundred images cost?
A thousand credits — 10 each — which is exactly the monthly allowance on Pro at $19. Studio at $59 gives 4,000 credits, so four hundred images.
Is there an API for large sets?
Yes, API access is included on Studio. Below that, runs are started in the browser workspace, several at a time up to your plan’s slot count.
Only some of the batch came out clean — why?
Usually the background changed. A set that looks uniform can vary in how busy the area under the mark is, and that is what decides the result. Test one file from each distinct background before running the rest.
More OpenFilmo tools
Other generators and utilities in the same workspace.