How do I merge multiple PDFs into one PDF?

Drop the PDFs onto the page, drag the cards to set the output order, optionally rotate or pick a page range for each, then click Merge into one PDF. The merged file downloads to your device immediately - nothing is uploaded.

Can I mix images and PDFs in the same merged file?

Yes. Drop any combination of PDFs and images (JPG, PNG, WebP, HEIC, GIF, BMP, SVG). Each image becomes one page; each selected PDF page is copied in. The cards keep their dropped order until you drag them.

Are my files uploaded to a server?

No. The merge runs entirely in your browser using WebAssembly. Your files never leave your device - the page works offline once it has loaded, and you can verify this in your browser's network panel.

How do I reorder PDF pages before merging?

Each file is a draggable card. Click and drag the handle on a card (or press Tab to focus it and use Space + arrow keys) to move it to a new position. The merged PDF reads top-left to bottom-right in the order shown.

Can I select specific pages from a PDF instead of merging all of it?

Yes. Multi-page PDFs show a 'Pages' field on their card. Type a comma-separated list with ranges - for example 1-3,5,7-9 - and only those pages are included in the merged output, in the order you specified.

Can I rotate pages before merging?

Yes. Every card has rotate-left and rotate-right buttons that step by 90 degrees. The thumbnail rotates live so you can preview the result. Image cards rotate the bitmap before embedding; PDF cards apply the rotation to the embedded page.

Does merging compress or re-encode the source PDFs?

No - the source PDF pages are embedded as-is, preserving the original page content stream. Images are embedded losslessly (JPG bytes are kept verbatim when rotation is 0; other formats are encoded as PNG, also lossless).

What page sizes are supported?

Auto (each page sized to its content for a zero-whitespace PDF), A4 (210x297mm), Letter (8.5x11in), and Legal (8.5x14in). Combine any size with portrait, landscape, or auto orientation, and pick a margin of None, 0.25in, 0.5in, or 1in.

Can I merge HEIC photos from my iPhone?

Yes. HEIC files are decoded locally by a WebAssembly module, converted to a canvas, and embedded into the merged PDF. Drop them alongside any other image or PDF.

Is there a file size or count limit?

No server-side limit - the tool never uploads anything. A warning shows when the total exceeds 200 MB because very large batches can stress browser memory, especially on phones. Most users can comfortably merge dozens of files at a time.

Does this work on iPhone, iPad, or Android?

Yes. The interface is responsive and the drag handles use touch-aware pointer events. Safari 16.4+ on iOS, Chrome on Android, and any modern mobile browser are supported.

Can I password-protect the merged PDF?

Not directly from the merge tool today. After downloading the merged PDF you can add a password with any PDF security app, or open it in Preview (macOS) / Acrobat to set permissions.

Will the merged PDF keep clickable links and bookmarks from the source PDFs?

Embedded page content (text, links inside the page) is preserved. Outline-level bookmarks from the source PDFs are not carried over to the merged document - this is a limitation of the browser-side merge.

Why use this instead of a desktop PDF merger?

No install, no signup, and your files never leave your computer. The tool is also reordering-first, which most desktop apps treat as a secondary feature - here drag-and-drop is the primary interaction.

Subformer

Accede

Coniunge PDF et Imagines in Unum PDF

Coniunge plures PDF et imagines in unum documentum PDF. Trahe ad reordinandum, rotandum, et eligendum paginarum spatia pro quolibet PDF. Omnia in navigatore tuo fiunt - documenta tua numquam ex tuo artificio exeunt.

Fasciculi numquam tuum navigatrum relinquunt. Omnis processus in tuo apparatu currit.

Imaginum vel PDF fasciculos huc demitte, vel preme ad perlegendum

JPG, PNG, WebP, HEIC, GIF, BMP, SVG et PDF sustinentur

Quomodo operat

Quattuor gradus ex folder documentorum ad unum, ordinatum PDF - omnino in navigatore tuo.

1. Adde documenta tua
Trahe PDF et imagines in paginam vel preme zonam demissionis. Inputa JPG, PNG, WebP, HEIC, GIF, BMP, SVG, et PDF omnia accipiuntur.
2. Reordina, rotato, tonde
Trahe chartas ad ordinem exitus mutandum. Rotato quamlibet rem in gradibus 90°, et pro PDF multi-paginis typum spatium sicut 1-3, 5, 7-9 ad solas illas paginas retinendas.
3. Elige optiones exitus
Elige magnitudinem paginae (Auto, A4, Littera, Legalis), orientationem, et marginem - vel omnia in Auto relinque pro PDF sine spatio albo quod contentum cuiusque documenti aequat.
4. Coniunge et depone
Preme Coniunge in unum PDF. Navigator tuus documentum finale aedificat et id sponte deponit - typice in secundis.

Quid est coniunctio PDF?

Coniungere PDF significat coniungere plures documenta fontis - PDF, imagines, vel mixtura utriusque - in unum PDF ubi unumquodque input in sua pagina (vel paginis) in ordine quem tu regis ponitur. Effectus est unum documentum quod mittere, archivare, vel imprimere potes sine timore ne paginae extra ordinem adveniant vel separentur.

Plerique coniunctores PDF online te cogunt fila tua imponere. Hoc efficit copias in servitore alterius, etiam breviter, quod est problema pro contractibus, acceptis, scan ID-orum, vel quolibet alio quod tradere nolis. Instrumentum coniunctionis Subformer totam pipeline currit - decodificans HEIC, reddens paginarum thumbnails, includens paginas, scribens bytes PDF finalis - in navigatro tuo. Aperi tabulam retis dum coniungis et videbis nullas petitiones ad servitores nostros.

Processum operis circa reordinationem et selectionem paginarum-range refecimus quia ibi pleraque coniunctiones revera tempus capiunt: non ipsa coniunctio sed invenire quas paginas includere et quo ordine. Trahere-et-demittere est gestus primarius, reordinatio claviaturae sustinetur, et imagines minores vivae manifestant quid singula charta repraesentet.

Casus usus communes

Quid homines typice coniungunt - et cur instrumentum navigatoris-lateris cum reordinatione celerius sit quam alternativa.

Relationes impensarum
Coniunge accepta telephono tuo capta (HEIC, JPG) et PDF argentaria in unum affixum pro rebus pecuniariis. Trahe ad ponendum scans secundum diem ordinata in ordine recto ante exportationem.
Scans multi-paginarum
Applicamenta scannaria saepe unam imaginem per paginam edunt. Imagines huc demitte, reordina si paginae confusae apparuerunt, converte quaslibet capturas horizontales, et unum PDF A4 vel Letter paratum ad communicandum depone.
Contractus et paginae signatae
Coniunge PDF contractus non signati cum imaginibus paginarum subscriptionis. Elige paginarum spatia ad commutandum paginam signatam specificam in originale sine retractatione totius contractus.
Subiectiones academicae
Coniunge relationem typis scriptam (PDF), figuras (PNG vel SVG), et scans appendicis in unum PDF paratum ad onerandum quod requisitum portalis assignationis unius documenti implet.
Documenta itineris
Scansionem diplomatis, visum, PDF reservationum, et assecurationem in unum documentum congrega. Facile est tibi ipsi mittere per electronicam vel imprimere in aeroportu sine septem fasciculis separatis quaerendis.
Venditiones / Fasciculi propositionum
Demitte PDF epistulae operculi, folia datorum producti, imagines studiorum casuum, et paginam pretii in unum PDF ordinatum pro futuris clientibus. Reordina pro quolibet negotio sine exportatione ex editore tuo omni tempore.

Cur "in navigatore tuo" interest

Instrumentum coniunctionis Subformer est pagina statica plus JavaScript client-side. Postquam oneratur, potes disiungi ab interrete et adhuc operatur. PDF et imagines quas demittis in memoria navigatri tui tenentur et numquam alibi copiantur. Haec est eadem architectura quam omne aliud instrumentum filorum Subformer utitur, et quapropter id gratis offerre possumus sine adscriptionibus, rationibus, vel limitibus impositionis.

Sub velamine

Omnis gradus coniunctionis - decodificatio, thumbnailing, inclusio, scriptio PDF finalis - fit cum bibliothecis apertae originis currentibus intra tabulam tuam.

Client-side PDF assembly: Documentum output in tabula tua aedificatur. Paginae ex PDF existente copiatae suum contentum originale retinent, ut textus selectabilis maneat et nihil re-reddatur.
In-browser PDF rendering: Miniaturae paginae quas trahis localiter redduntur, solum ad resolutionem praevisus. Documentum tuum numquam in servo rasterizatur ad eas producendas.
WebAssembly HEIC decoding: Photographiae HEIC ex iPhone in machina tua decodificantur ut coniungi possint sine gradu conversionis separato. Navigatores nullum decodificatorem nativum pro illa forma habent, ut modulus WebAssembly id localiter tractet.
Canvas 2D and drag-to-reorder: Imagines mensurantur et re-codificantur per API canvas navigatri, et craticula reordinandi sustinet reordinandum per claviaturae pro accessibilitate.

Egesne conversione unica loco coniunctionis? Unusquisque nexus infra aperit paginam dedicatam, ad formatum aptatam.

Coniunge PDF et Imagines in Unum PDF

Quomodo operat

1. Adde documenta tua

2. Reordina, rotato, tonde

3. Elige optiones exitus

4. Coniunge et depone

Quid est coniunctio PDF?

Casus usus communes

Relationes impensarum

Scans multi-paginarum

Contractus et paginae signatae

Subiectiones academicae

Documenta itineris

Venditiones / Fasciculi propositionum

Cur "in navigatore tuo" interest

Sub velamine

Conversores unius documenti affines

Quaestiones saepe rogatae

Quomodo coniungo plures PDF in unum PDF?

Possumne miscere imagines et PDF in eodem documento?

Onus sunt documenta mea in servitrum?

Quomodo paginas reordino ante coniunctionem?

Possumne eligere paginas specificas ex PDF, non omnes?

Possumne paginas rotare ante coniunctionem?

Coniungens comprimitne vel qualitatem amittit?

Quas magnitudines paginarum eligere possum?

Possumne coniungere imagines HEIC ex iPhone meo?

Estne magnitudo documenti vel numerus limitis?

Operaturne in iPhone, iPad, vel Android?

Possumne munire tessera PDF coniunctum?

Retinentur nexus cliccabiles et signa paginarum ex PDF fontis?

Cur hoc uti potius quam coniunctor PDF escritorio?