Dividir por tamaño
Divide un PDF en varios archivos, cada uno por debajo del límite de tamaño que elijas.
Mail servers, upload forms and government portals all impose a maximum attachment size, and a scanned document routinely sails past it. This tool cuts a PDF into as many parts as it takes for each one to come in under a limit you set, filling each part as full as it can before starting the next.
The limit is on the parts, not on the total, so it is worth trying to make the document smaller first. Compressing a photo-heavy scan often brings the whole thing under the threshold in one step and saves you sending four attachments where one would do.
How it works
- Drop in a PDF and check its current size.
- Set the maximum size each part may reach.
- Split, and download the parts.
What people use it for
- Emailing a large scan through a server that rejects anything over 10 MB.
- Uploading a long document to a portal with a per-file cap.
- Breaking an archive of scans into pieces small enough to send over a slow connection.
Frequently asked questions
- Is my file uploaded to a server?
- No. The file is opened by JavaScript and WebAssembly running inside your own browser tab. It is never uploaded, there is no server-side processing and nothing is stored — closing the tab discards everything.
- It says the PDF is already under the limit.
- Then there is nothing to do — splitting would produce a single part identical to the file you have. Lower the limit if you need smaller pieces than that.
- A single page is bigger than my limit. What then?
- Splitting cannot help, because a page is the smallest unit it can put in a part. Compress the document first — a full-page photograph is almost always what makes a page that heavy.
- Would compressing be better than splitting?
- Usually yes, if the recipient has to reassemble the parts. Try Compress first and split only what is still too large; four attachments are four chances for one to go missing.
- Are the parts exactly the size I set?
- No — each is filled up to the limit and then closed, so parts come out at various sizes below it. The guarantee is the ceiling, not a uniform size.
Herramientas relacionadas
Flujo de trabajo PDF
Encadena varias herramientas en una sola ejecución — rota, marca de agua, numera, comprime y protege en el orden que elijas, y descarga el resultado.
Unir PDF
Combina varios PDF en uno — reordena los archivos y descarga un único PDF.
Rotar PDF
Rota las páginas seleccionadas de un PDF 90°, 180° o 270°. Elige todas o un rango.
Organizar PDF
Une varios PDF, reordena y rota páginas arrastrando, elimina lo que sobra y luego divide o guarda.