How to export a comic as one long vertical image

When a long image is the right format

Use a long vertical image when readers will scroll through the episode on a phone, when you want one portable file, or when a platform accepts a stitched strip. Page manga is usually better when readers need fixed pages or print-like panels.

Only finished, supported pages should be included. Draft export and current sharing conditions follow the account and plan rules shown in the product guide.

Prepare the episode

Review the page order, dialogue, captions, and panel transitions first. A long image makes sequence problems more visible because every page is placed in one continuous reading path.

Choose the cover and selected page range in the export flow. Keep a local copy of completed images because browser storage, project limits, and sharing rules can change.

Export and check the file

Export the supported webtoon as one long vertical image. Open the file after download and check the top, bottom, page joins, text readability, and image dimensions before uploading it elsewhere.

If the destination has a maximum image height or per-file size cap, use the webtoon size calculator or image splitter to divide the strip into ordered segments. Do not assume every platform accepts one unlimited-height file.

Design for a continuous reading path

A long strip is more than pages placed one below another. The gap between pages, the distance between major beats, and the amount of quiet space affect how quickly a reader scrolls. Review the joins between pages and make sure a speech bubble, face, reveal, or important object is not awkwardly split at a boundary.

If the episode was planned as fixed pages, some transitions may feel too abrupt when stacked. Use the preview to check the rhythm at the width your readers will use. A desktop view can hide a text or pacing problem that is obvious on a phone.

Check dimensions and file size before publishing

The destination platform, not StoriesToon, sets its accepted width, maximum height, file size, color profile, and upload count. Use the current platform notice as the requirement. The calculator and splitter are preparation tools: they help estimate segments and preserve order, but their example values are not universal platform rules.

When a strip is too tall or too large, split it into ordered files and give each file a stable name such as 001, 002, and 003. Keep the original long image as an archive copy so you can create a different segmentation later without rebuilding the episode.

Preserve quality while splitting and compressing

Keep the working image at the intended reading width whenever possible. Repeated resizing can soften lettering and thin lines, especially when the original pages already contain small text. If you need compression, make the split first and compress the final upload files once, then inspect the result on a phone.

Open several segments, not just the first one. Check that no panel is cut through a face, that page order is correct, and that the last segment contains the ending and any credits. A successful download only proves that a file was created; it does not prove that it is ready for a platform.

Archive and share with the right permissions

Keep the long strip together with the individual page ZIP or image files when you archive a finished episode. The long strip is convenient for reading, while separate pages are more useful for a platform with upload limits or for a later correction. Keep a note of the export date and the page range used.

Before sharing, confirm the rights to the source material, the people and locations shown, and any music or logos represented in the artwork. A file export is not a license to publish. Public gallery eligibility and external platform rules still apply after the strip has been downloaded.

Use a final phone-width inspection

Open the strip at a comfortable phone width and scroll from the first panel to the last without zooming in and out. Check whether dialogue is readable, whether panel gaps separate the beats, and whether the next scene starts at a natural point. Repeat the check after splitting because a segment boundary can change how the first and last rows feel.

If a platform recompresses the upload, inspect the published result as well as the local file. Keep the original export so you can distinguish a source problem from a platform transformation and regenerate only the affected segments when necessary.

Decide whether to export one strip or segments

Keep the single strip when the destination supports it and the file remains practical to open and transfer. Use ordered segments when the destination has a height or size limit, when readers need faster loading, or when the platform processes each upload separately. The same finished episode can have both versions without changing the artwork.

Before you split, mark the intended scene boundaries and avoid placing a major reveal exactly at a technical cut. After splitting, inspect the first and last rows of every segment. A technically valid file can still create a poor reading experience if the cut interrupts a face, caption, or action.

Keep the export tied to the approved page range

A long strip reflects the pages and order that were selected when the export was created. If you later redraw a page, change the cover, or remove a draft, create a new export instead of assuming the old file updates itself. Label archived files with the episode name, page range, and export date so a reader does not receive an outdated version.

When a collaborator reports a problem, ask for the segment or page where it appears and compare it with the local source. This helps separate an artwork issue, a slicing issue, and a platform compression issue. Fix the smallest layer that is actually wrong, then regenerate the final delivery files.

If the file opens but looks blank, check whether the browser finished loading local assets and whether the export was moved as a complete package. If text is clipped, compare the source page with the final segment at the same zoom. These simple checks prevent a platform upload problem from being mistaken for a generation problem.