Will the tool create two files with fewer pages?

It creates two files, but each retains the source page count and original page order. A vertical split produces a left-half file and a right-half file; a horizontal split produces a top-half file and a bottom-half file.

Are my PDF pages uploaded?

No. The source is read and processed on your device, and both downloads are created locally in your browser.

What happens to forms, comments, and links?

Normal page artwork is retained, but fillable fields, comments, links, buttons, and annotations are not preserved as editable objects in the half-page outputs.

Why does a rotated page look different from the selected direction?

The split follows stored PDF coordinates. A page saved with 90-degree or 270-degree rotation can make a vertical coordinate split look horizontal in a viewer, so inspect the downloaded boundary before printing.

Split PDF in Half: Outputs, Limits, and Privacy

Split a PDF in half by dividing the visible area of every page at its centre, producing two ordered PDF files: one for all left halves and one for all right halves, or one for all top halves and one for all bottom halves.

Use the Split PDF in Half browser tool when every page follows the same two-panel layout and you need two separately usable PDF sequences. This is a split by visible page area, not an extraction by page number.

split pdf in to half — Split PDF in Half: Outputs, Limits, and Privacy

What the two output PDFs contain

Both downloads keep the source PDF’s page order and page count. Each output contains one selected half of every original page rather than a selection of complete pages. For example, a 10-page source becomes two 10-page downloads: one ordered sequence of left halves and another of right halves when the vertical option is selected.

For each source page, the tool creates a fresh page with smaller dimensions, embeds the complete original page, shifts it to expose the requested side, and applies a matching clipping path. The other visible half therefore cannot appear outside the new page boundary.

The source PDF is not edited in place or overwritten. Instead, the tool creates two new PDF files, and you can save or use each download individually.

Choose the split direction

The available directions correspond to the two ways a page can be divided through its centre. Choose the option that matches the arrangement of the material on your pages.

Split choice	Files created	Suitable layout
Left and right	One left-half PDF and one right-half PDF	Side-by-side columns, digitized book spreads, wide scanner captures, or paired forms
Top and bottom	One top-half PDF and one bottom-half PDF	Pages containing stacked panels or top-and-bottom sections

Both choices apply the same centre-line split to every page. This makes the workflow suitable for two-column handouts, side-by-side forms, proof sheets, and similar documents that need to be reviewed or printed as separate halves.

The split point is fixed at the centre of each page. It is not a custom draggable divider, so any content extending across the centre line will be divided between the two outputs. Documents with a different layout on every page may therefore need editing before they are ready for this workflow.

Create the two half-page PDFs

Choose the PDF. Select one PDF file from your device.
Select the halves. Choose either left and right halves for a vertical split or top and bottom halves for a horizontal split.
Split and download. Run the split, then download both ordered half-page PDFs.

The downloads are separate files rather than a ZIP archive. Save the left and right files or the top and bottom files individually with clear names so the correct sequence is easy to identify later.

Keep the original PDF until you have inspected both results. Although the source is never overwritten, checking the new files first helps you confirm that the chosen direction suits the document before using it for printing or distribution.

Inspect the boundary before using the files

Open both downloads in a PDF viewer and check the corresponding pages before sending them onward. The centre-line cut should be consistent throughout the document, and the two files should follow the same original page order.

Confirm that both PDFs downloaded successfully.
Check that each file contains the expected number of pages.
Inspect pages containing dense text, graphics, or content close to the centre.
Verify that the intended panel appears in the correct output.
Review any forms, comments, links, or annotations separately because they are not retained as editable objects.

For rotated documents, inspect the boundary on both downloads before printing. The selected coordinate direction can look different in a viewer even though the operation was performed consistently across the document.

Review artwork and interactive PDF content

Normal page artwork, including text, vectors, and images, is rendered into the new pages. Each result is a complete PDF sequence with its own smaller page dimensions, rather than an image or a collection of cropped screenshots.

Interactive objects are a different layer of a PDF. Fillable form fields, comments, links, buttons, and annotations are not retained as editable objects in either half-page output. Use a full PDF editor when that interactivity must survive the split.

The clipping path controls what is visibly displayed, but the operation is not a hidden-content removal process. The tool does not claim to remove hidden content from the source file, so do not treat the split as a substitute for document sanitization when confidential hidden data must be eliminated.

Prepare protected or rotated documents

Password-protected or unreadable PDFs are rejected safely. Remove known protection before trying again. Remove PDF PasswordIf editable form data must survive, unlock the original in a full PDF editor instead.

Some scans and document feeders store a 90-degree or 270-degree page rotation. The tool detects those pages and shows a notice because the split is calculated in stored PDF coordinates. In a viewer, a vertical coordinate split may therefore appear as a top-and-bottom visual boundary, or the reverse.

Always inspect both downloads before sending a rotated document to print. For ordinary, unrotated reports and scans, the left/right or top/bottom labels match the page as displayed.

Keep the source on your device

The source file is read and processed on your device, and the two downloads are created in your browser. No source file is uploaded, and no account is required. This keeps the document within the local browser workflow while the split is performed.

The original PDF remains separate from the results and is never overwritten. You can therefore close the finished files without replacing the source, provided you have saved the two generated PDFs separately.

Choose a different operation for a different result

A centre-line split is different from dividing a PDF by page ranges. For a fuller explanation of the distinction, see the difference between centre-line splitting and page-range splitting. When the job is to group whole pages rather than divide every visible page, use Split PDF instead.

Your required result	Suitable operation	What it changes
Separate selected whole pages into files	Split PDF	Groups complete pages instead of halving their visible area
Put existing pages in a new order	Rearrange PDF Pages	Changes the sequence of the original pages
Trim margins or adjust the visible box	Crop PDF	Changes the visible page box without creating two half-page sequences
Correct page orientation only	Rotate PDF	Rotates pages without dividing them

Split PDF in Half is best when every page follows the same two-panel layout and you need two clean, usable outputs in the original order.

For a deeper look, see Split PDF Into Separate Files: Choose Page Breaks.