feat(pdf): three-level quality (Normal/Compressed/Draft) + download modal

- compilePdfQuality: 'none' | 'ebook' | 'screen' replaces compressPdf: boolean
  throughout the stack (types, context, compiler, RequestParser, CompileManager)
- Compile dropdown now shows Normal / Compressed / Draft under "PDF quality"
  (ebook=150dpi, screen=72dpi via Ghostscript)
- Download button opens a modal with the same three quality options plus
  per-option descriptions and a Ghostscript attribution note; compressed
  downloads are served by a new /download/.../output.pdf/compressed endpoint
  that fetches the last build from clsi and pipes it through GS on demand

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

services/clsi/app/js/CompileManager.js

@@ -318,8 +318,8 @@ async function doCompile(request, stats, timings) {
     'done compile'
   )
 
-  if (request.compressPdf) {
+  if (request.compilePdfQuality && request.compilePdfQuality !== 'none') {
-    await _compressOutputPdf(compileDir)
+    await _compressOutputPdf(compileDir, request.compilePdfQuality)
   }
 
   const { outputFiles, buildId } = await _saveOutputFiles({
@@ -449,7 +449,8 @@ async function clearExpiredProjects(maxCacheAgeMs) {
   }
 }
 
-async function _compressOutputPdf(compileDir) {
+async function _compressOutputPdf(compileDir, quality) {
+  const preset = quality === 'screen' ? '/screen' : '/ebook'
   const src = Path.join(compileDir, 'output.pdf')
   const tmp = Path.join(compileDir, 'output-gs-tmp.pdf')
   const t0 = Date.now()
@@ -461,7 +462,7 @@ async function _compressOutputPdf(compileDir) {
           '-q', '-dNOPAUSE', '-dBATCH',
           '-sDEVICE=pdfwrite',
           '-dCompatibilityLevel=1.7',
-          '-dPDFSETTINGS=/ebook',
+          `-dPDFSETTINGS=${preset}`,
           `-sOutputFile=${tmp}`,
           src,
         ],

services/clsi/app/js/RequestParser.js

@@ -91,10 +91,10 @@ function parse(body, callback) {
       default: false,
       type: 'boolean',
     })
-    response.compressPdf = _parseAttribute(
+    response.compilePdfQuality = _parseAttribute(
-      'compressPdf',
+      'compilePdfQuality',
-      compile.options.compressPdf,
+      compile.options.compilePdfQuality,
-      { default: false, type: 'boolean' }
+      { default: 'none', type: 'string' }
     )
     response.stopOnFirstError = _parseAttribute(
       'stopOnFirstError',

services/web/app/src/Features/Compile/CompressedPdfController.mjs

@@ -0,0 +1,100 @@
+import { pipeline } from 'node:stream/promises'
+import { createWriteStream, createReadStream } from 'node:fs'
+import { unlink, mkdtemp } from 'node:fs/promises'
+import { join } from 'node:path'
+import { tmpdir } from 'node:os'
+import { spawn } from 'node:child_process'
+import logger from '@overleaf/logger'
+import Settings from '@overleaf/settings'
+import { expressify } from '@overleaf/promise-utils'
+import SessionManager from '../Authentication/SessionManager.mjs'
+import ClsiManager from './ClsiManager.mjs'
+import ProjectGetter from '../Project/ProjectGetter.mjs'
+
+const GS_PRESETS = { ebook: '/ebook', screen: '/screen' }
+
+async function _compressStream(inputStream, quality) {
+  const preset = GS_PRESETS[quality] || '/ebook'
+  const dir = await mkdtemp(join(tmpdir(), 'verso-pdf-'))
+  const inPath = join(dir, 'input.pdf')
+  const outPath = join(dir, 'output.pdf')
+
+  try {
+    await pipeline(inputStream, createWriteStream(inPath))
+
+    await new Promise((resolve, reject) => {
+      const proc = spawn(
+        'gs',
+        [
+          '-q', '-dNOPAUSE', '-dBATCH',
+          '-sDEVICE=pdfwrite',
+          '-dCompatibilityLevel=1.7',
+          `-dPDFSETTINGS=${preset}`,
+          `-sOutputFile=${outPath}`,
+          inPath,
+        ],
+        { stdio: 'ignore' }
+      )
+      proc.on('error', reject)
+      proc.on('close', code => {
+        if (code === 0) resolve()
+        else reject(new Error(`gs exited ${code}`))
+      })
+    })
+
+    return { stream: createReadStream(outPath), cleanup: () => Promise.all([unlink(inPath), unlink(outPath)]).catch(() => {}) }
+  } catch (err) {
+    await Promise.all([unlink(inPath).catch(() => {}), unlink(outPath).catch(() => {})])
+    throw err
+  }
+}
+
+async function downloadCompressedPdf(req, res) {
+  const projectId = req.params.Project_id
+  const buildId = req.params.build_id
+  const quality = req.query.quality
+  const clsiServerId = req.query.clsiserverid || null
+  const editorId = req.query.editorId || null
+
+  if (!GS_PRESETS[quality]) {
+    return res.status(400).send('Invalid quality. Use "ebook" or "screen".')
+  }
+
+  const userId = SessionManager.getLoggedInUserId(req.session)
+  const compileAsUser = Settings.disablePerUserCompiles ? undefined : userId
+
+  let cleanup = null
+  try {
+    const inputStream = await ClsiManager.promises.getOutputFileStream(
+      projectId,
+      compileAsUser,
+      clsiServerId,
+      buildId,
+      'output.pdf'
+    )
+
+    const { stream, cleanup: _cleanup } = await _compressStream(inputStream, quality)
+    cleanup = _cleanup
+
+    const project = await ProjectGetter.promises.getProject(projectId, { name: 1 })
+    const safeName = (project?.name || 'document')
+      .replace(/[^\p{L}\p{Nd}]/gu, '_')
+
+    res.setHeader('Content-Type', 'application/pdf')
+    res.setHeader('Cache-Control', 'no-store')
+    res.setHeader('Content-Disposition', `attachment; filename="${safeName}.pdf"`)
+
+    await pipeline(stream, res)
+  } catch (err) {
+    logger.error({ err, projectId, quality }, 'compressed pdf download failed')
+    if (!res.headersSent) {
+      res.status(500).send('Compression failed. Please try compiling first.')
+    }
+  } finally {
+    if (cleanup) await cleanup()
+  }
+}
+
+export default {
+  downloadCompressedPdf: expressify(downloadCompressedPdf),
+}

services/web/app/src/router.mjs

@@ -5,6 +5,7 @@ import ProjectController from './Features/Project/ProjectController.mjs'
 import ProjectApiController from './Features/Project/ProjectApiController.mjs'
 import PublishedPresentationController from './Features/PublishedPresentation/PublishedPresentationController.mjs'
 import PresentationExportController from './Features/Compile/PresentationExportController.mjs'
+import CompressedPdfController from './Features/Compile/CompressedPdfController.mjs'
 import PythonRequirementsController from './Features/Compile/PythonRequirementsController.mjs'
 import ProjectListController from './Features/Project/ProjectListController.mjs'
 import SpellingController from './Features/Spelling/SpellingController.mjs'
@@ -671,6 +672,13 @@ async function initialize(webRouter, privateApiRouter, publicApiRouter) {
     CompileController.downloadPdf
   )
 
+  // On-demand GS-compressed PDF download (quality=ebook|screen)
+  webRouter.get(
+    '/download/project/:Project_id/build/:build_id/output/output.pdf/compressed',
+    AuthorizationMiddleware.ensureUserCanReadProject,
+    CompressedPdfController.downloadCompressedPdf
+  )
+
   // Align with limits defined in CompileController.downloadPdf
   const rateLimiterMiddlewareOutputFiles = RateLimiterMiddleware.rateLimit(
     rateLimiters.miscOutputDownload,

services/web/frontend/extracted-translations.json

@@ -2289,9 +2289,17 @@
   "typst_preview_mode": "",
   "typst_preview_pdf": "",
   "typst_preview_wasm": "",
-  "pdf_size": "",
+  "pdf_quality": "",
-  "pdf_size_normal": "",
+  "pdf_quality_normal": "",
-  "pdf_size_compressed": "",
+  "pdf_quality_compressed": "",
+  "pdf_quality_draft": "",
+  "pdf_download_quality_label": "",
+  "pdf_download_normal_desc": "",
+  "pdf_download_ebook_desc": "",
+  "pdf_download_screen_desc": "",
+  "pdf_download_ghostscript_note": "",
+  "pdf_download_compression_failed": "",
+  "downloading": "",
   "experimental": "",
   "typst_wasm_error": "",
   "typst_wasm_loading": "",

services/web/frontend/js/features/pdf-preview/components/pdf-compile-button.tsx

@@ -38,11 +38,11 @@ function PdfCompileButton() {
     animateCompileDropdownArrow,
     autoCompile,
     compiling,
-    compressPdf,
+    compilePdfQuality,
     draft,
     hasChanges,
     setAutoCompile,
-    setCompressPdf,
+    setCompilePdfQuality,
     setDraft,
     setStopOnValidationError,
     stopOnFirstError,
@@ -203,27 +203,38 @@ function PdfCompileButton() {
               </DropdownItem>
             </li>
             <DropdownDivider />
-            <DropdownHeader>{t('pdf_size')}</DropdownHeader>
+            <DropdownHeader>{t('pdf_quality')}</DropdownHeader>
             <li role="none">
               <DropdownItem
                 as="button"
                 onClick={() =>
-                  sendEventAndSet(false, setCompressPdf, 'pdf-size')
+                  sendEventAndSet('none', setCompilePdfQuality, 'pdf-quality')
                 }
-                trailingIcon={!compressPdf ? 'check' : null}
+                trailingIcon={compilePdfQuality === 'none' ? 'check' : null}
               >
-                {t('pdf_size_normal')}
+                {t('pdf_quality_normal')}
               </DropdownItem>
             </li>
             <li role="none">
               <DropdownItem
                 as="button"
                 onClick={() =>
-                  sendEventAndSet(true, setCompressPdf, 'pdf-size')
+                  sendEventAndSet('ebook', setCompilePdfQuality, 'pdf-quality')
                 }
-                trailingIcon={compressPdf ? 'check' : null}
+                trailingIcon={compilePdfQuality === 'ebook' ? 'check' : null}
               >
-                {t('pdf_size_compressed')}
+                {t('pdf_quality_compressed')}
+              </DropdownItem>
+            </li>
+            <li role="none">
+              <DropdownItem
+                as="button"
+                onClick={() =>
+                  sendEventAndSet('screen', setCompilePdfQuality, 'pdf-quality')
+                }
+                trailingIcon={compilePdfQuality === 'screen' ? 'check' : null}
+              >
+                {t('pdf_quality_draft')}
               </DropdownItem>
             </li>
           </>

services/web/frontend/js/features/pdf-preview/components/pdf-hybrid-download-button.tsx

@@ -23,6 +23,7 @@ import {
 import LoadingSpinner from '@/shared/components/loading-spinner'
 
 type ExportFormat = 'html' | 'pdf'
+type PdfQuality = 'normal' | 'ebook' | 'screen'
 
 function filenameFromDisposition(disposition: string | null, ext: string) {
   const match = disposition?.match(/filename="?([^"]+)"?/)
@@ -44,6 +45,58 @@ function PdfHybridDownloadButton() {
   // after they've closed it doesn't pop the modal back open.
   const requestIdRef = useRef(0)
 
+  // Compressed PDF download modal (for regular PDF, not presentations)
+  const [showDownloadModal, setShowDownloadModal] = useState(false)
+  const [downloadQuality, setDownloadQuality] = useState<PdfQuality>('normal')
+  const [downloading, setDownloading] = useState(false)
+  const [downloadError, setDownloadError] = useState<string | null>(null)
+
+  const startCompressedDownload = useCallback(async () => {
+    if (!pdfDownloadUrl) return
+    if (downloadQuality === 'normal') {
+      // Direct download — no server-side compression needed
+      const link = document.createElement('a')
+      link.href = pdfDownloadUrl
+      link.download = ''
+      document.body.appendChild(link)
+      link.click()
+      link.remove()
+      setShowDownloadModal(false)
+      return
+    }
+    setDownloading(true)
+    setDownloadError(null)
+    try {
+      // Derive the compressed URL from the existing pdfDownloadUrl by appending /compressed
+      const compressedUrl = pdfDownloadUrl.replace(
+        /\/output\.pdf(\?|$)/,
+        `/output.pdf/compressed$1`
+      ) + (pdfDownloadUrl.includes('?') ? '&' : '?') + `quality=${downloadQuality}`
+      const response = await fetch(compressedUrl, { credentials: 'same-origin' })
+      if (!response.ok) {
+        setDownloadError(t('pdf_download_compression_failed'))
+        return
+      }
+      const blob = await response.blob()
+      const disposition = response.headers.get('Content-Disposition')
+      const match = disposition?.match(/filename="?([^"]+)"?/)
+      const filename = match ? match[1] : 'document.pdf'
+      const url = URL.createObjectURL(blob)
+      const link = document.createElement('a')
+      link.href = url
+      link.download = filename
+      document.body.appendChild(link)
+      link.click()
+      link.remove()
+      URL.revokeObjectURL(url)
+      setShowDownloadModal(false)
+    } catch (err) {
+      setDownloadError(err instanceof Error ? err.message : String(err))
+    } finally {
+      setDownloading(false)
+    }
+  }, [pdfDownloadUrl, downloadQuality, t])
+
   const dismiss = useCallback(() => {
     requestIdRef.current += 1
     setExporting(null)
@@ -179,42 +232,103 @@ function PdfHybridDownloadButton() {
     ? t('download_pdf')
     : t('please_compile_pdf_before_download')
 
-  function handleOnClick(e: React.MouseEvent) {
-    const event = e as React.MouseEvent<HTMLAnchorElement>
-    if (event.currentTarget.dataset.disabled === 'true') {
-      event.preventDefault()
-      return
-    }
-
-    sendEvent('download-pdf-button-click', {
-      projectId,
-      location: 'pdf-preview',
-      isSmallDevice,
-    })
-  }
-
   return (
-    <OLTooltip
+    <>
-      id="download-pdf"
+      <OLTooltip
-      description={description}
+        id="download-pdf"
-      overlayProps={{ placement: 'bottom' }}
+        description={description}
-    >
+        overlayProps={{ placement: 'bottom' }}
-      <OLButton
-        onClick={handleOnClick}
-        variant="link"
-        className="pdf-toolbar-btn"
-        draggable={false}
-        data-disabled={!pdfDownloadUrl}
-        disabled={!pdfDownloadUrl}
-        download
-        href={pdfDownloadUrl || '#'}
-        target="_blank"
-        style={{ pointerEvents: 'auto' }}
-        aria-label={t('download_pdf')}
       >
-        <MaterialIcon type="download" />
+        <OLButton
-      </OLButton>
+          onClick={() => {
-    </OLTooltip>
+            if (!pdfDownloadUrl) return
+            sendEvent('download-pdf-button-click', {
+              projectId,
+              location: 'pdf-preview',
+              isSmallDevice,
+            })
+            setShowDownloadModal(true)
+          }}
+          variant="link"
+          className="pdf-toolbar-btn"
+          draggable={false}
+          data-disabled={!pdfDownloadUrl}
+          disabled={!pdfDownloadUrl}
+          style={{ pointerEvents: 'auto' }}
+          aria-label={t('download_pdf')}
+        >
+          <MaterialIcon type="download" />
+        </OLButton>
+      </OLTooltip>
+
+      <OLModal
+        show={showDownloadModal}
+        onHide={() => {
+          setShowDownloadModal(false)
+          setDownloadError(null)
+        }}
+      >
+        <OLModalHeader closeButton>
+          <OLModalTitle>{t('download_pdf')}</OLModalTitle>
+        </OLModalHeader>
+        <OLModalBody>
+          <p className="mb-2">{t('pdf_download_quality_label')}</p>
+          <div className="d-flex flex-column gap-2 mb-3">
+            {(
+              [
+                { value: 'normal', label: t('pdf_quality_normal'), desc: t('pdf_download_normal_desc') },
+                { value: 'ebook', label: t('pdf_quality_compressed'), desc: t('pdf_download_ebook_desc') },
+                { value: 'screen', label: t('pdf_quality_draft'), desc: t('pdf_download_screen_desc') },
+              ] as { value: PdfQuality; label: string; desc: string }[]
+            ).map(opt => (
+              <label key={opt.value} className="d-flex align-items-start gap-2" style={{ cursor: 'pointer' }}>
+                <input
+                  type="radio"
+                  name="pdf-quality"
+                  value={opt.value}
+                  checked={downloadQuality === opt.value}
+                  onChange={() => setDownloadQuality(opt.value)}
+                  className="mt-1"
+                />
+                <span>
+                  <strong>{opt.label}</strong>
+                  <br />
+                  <small className="text-muted">{opt.desc}</small>
+                </span>
+              </label>
+            ))}
+          </div>
+          {downloadQuality !== 'normal' && (
+            <p className="text-muted mb-0" style={{ fontSize: '0.8em' }}>
+              {t('pdf_download_ghostscript_note')}
+            </p>
+          )}
+          {downloadError && (
+            <p className="text-danger mb-0 mt-2">{downloadError}</p>
+          )}
+        </OLModalBody>
+        <OLModalFooter>
+          <OLButton
+            variant="secondary"
+            onClick={() => {
+              setShowDownloadModal(false)
+              setDownloadError(null)
+            }}
+          >
+            {t('cancel')}
+          </OLButton>
+          <OLButton
+            variant="primary"
+            onClick={startCompressedDownload}
+            isLoading={downloading}
+            loadingLabel={`${t('downloading')}…`}
+            disabled={downloading}
+          >
+            {t('download')}
+          </OLButton>
+        </OLModalFooter>
+      </OLModal>
+    </>
   )
 }
 

services/web/frontend/js/features/pdf-preview/util/compiler.ts

@@ -147,7 +147,7 @@ export default class DocumentCompiler {
         // if there was previously a server error
         incrementalCompilesEnabled: !this.error,
         stopOnFirstError: options.stopOnFirstError,
-        compressPdf: options.compressPdf,
+        compilePdfQuality: options.compilePdfQuality,
         editorId: EDITOR_SESSION_ID,
       }
 

services/web/frontend/js/shared/context/detach-compile-context.tsx

@@ -81,8 +81,8 @@ export const DetachCompileProvider: FC<React.PropsWithChildren> = ({
     changedAt: _changedAt,
     typstPreviewMode: _typstPreviewMode,
     setTypstPreviewMode: _setTypstPreviewMode,
-    compressPdf: _compressPdf,
+    compilePdfQuality: _compilePdfQuality,
-    setCompressPdf: _setCompressPdf,
+    setCompilePdfQuality: _setCompilePdfQuality,
   } = localCompileContext
 
   const [animateCompileDropdownArrow] = useDetachStateWatcher(
@@ -449,15 +449,15 @@ export const DetachCompileProvider: FC<React.PropsWithChildren> = ({
     'detacher'
   )
 
-  const [compressPdf] = useDetachStateWatcher(
+  const [compilePdfQuality] = useDetachStateWatcher(
-    'compressPdf',
+    'compilePdfQuality',
-    _compressPdf,
+    _compilePdfQuality,
     'detacher',
     'detached'
   )
-  const setCompressPdf = useDetachAction(
+  const setCompilePdfQuality = useDetachAction(
-    'setCompressPdf',
+    'setCompilePdfQuality',
-    _setCompressPdf,
+    _setCompilePdfQuality,
     'detached',
     'detacher'
   )
@@ -530,8 +530,8 @@ export const DetachCompileProvider: FC<React.PropsWithChildren> = ({
       changedAt,
       typstPreviewMode,
       setTypstPreviewMode,
-      compressPdf,
+      compilePdfQuality,
-      setCompressPdf,
+      setCompilePdfQuality,
     }),
     [
       animateCompileDropdownArrow,
@@ -595,8 +595,8 @@ export const DetachCompileProvider: FC<React.PropsWithChildren> = ({
       changedAt,
       typstPreviewMode,
       setTypstPreviewMode,
-      compressPdf,
+      compilePdfQuality,
-      setCompressPdf,
+      setCompilePdfQuality,
     ]
   )
 

services/web/frontend/js/shared/context/local-compile-context.tsx

@@ -91,8 +91,8 @@ export type CompileContext = {
   pdfViewer?: string
   position?: PdfScrollPosition
   rawLog?: string
-  compressPdf: boolean
+  compilePdfQuality: 'none' | 'ebook' | 'screen'
-  setCompressPdf: (value: boolean) => void
+  setCompilePdfQuality: (value: 'none' | 'ebook' | 'screen') => void
   setAutoCompile: (value: boolean) => void
   setDraft: (value: any) => void
   smoothPdfTransition: boolean
@@ -280,12 +280,10 @@ export const LocalCompileProvider: FC<React.PropsWithChildren> = ({
     listen: true,
   })
 
-  // whether to compress the PDF with ghostscript (for low-bandwidth connections)
+  // PDF quality for compile-time GS compression ('none' | 'ebook' | 'screen')
-  const [compressPdf, setCompressPdf] = usePersistedState(
+  const [compilePdfQuality, setCompilePdfQuality] = usePersistedState<
-    `compress_pdf:${projectId}`,
+    'none' | 'ebook' | 'screen'
-    false,
+  >(`pdf_quality:${projectId}`, 'none', { listen: true })
-    { listen: true }
-  )
 
   // whether compiling should stop on first error
   const [stopOnFirstError, setStopOnFirstError] = usePersistedState(
@@ -422,10 +420,10 @@ export const LocalCompileProvider: FC<React.PropsWithChildren> = ({
     compiler.setOption('draft', draft)
   }, [compiler, draft])
 
-  // keep compressPdf setting in sync with the compiler
+  // keep compilePdfQuality setting in sync with the compiler
   useEffect(() => {
-    compiler.setOption('compressPdf', compressPdf)
+    compiler.setOption('compilePdfQuality', compilePdfQuality)
-  }, [compiler, compressPdf])
+  }, [compiler, compilePdfQuality])
 
   // keep stop on first error setting in sync with the compiler
   useEffect(() => {
@@ -875,7 +873,7 @@ export const LocalCompileProvider: FC<React.PropsWithChildren> = ({
       setAnimateCompileDropdownArrow,
       setAutoCompile,
       setCompiling,
-      setCompressPdf,
+      setCompilePdfQuality,
       setDraft,
       setError,
       setHasLintingError, // only for stories
@@ -910,8 +908,8 @@ export const LocalCompileProvider: FC<React.PropsWithChildren> = ({
       changedAt,
       typstPreviewMode,
       setTypstPreviewMode,
-      compressPdf,
+      compilePdfQuality,
-      setCompressPdf,
+      setCompilePdfQuality,
     }),
     [
       animateCompileDropdownArrow,
@@ -921,7 +919,7 @@ export const LocalCompileProvider: FC<React.PropsWithChildren> = ({
       clsiServerId,
       codeCheckFailed,
       compiling,
-      compressPdf,
+      compilePdfQuality,
       deliveryLatencies,
       draft,
       editedSinceCompileStarted,
@@ -941,7 +939,7 @@ export const LocalCompileProvider: FC<React.PropsWithChildren> = ({
       recompileFromScratch,
       setAnimateCompileDropdownArrow,
       setAutoCompile,
-      setCompressPdf,
+      setCompilePdfQuality,
       setDraft,
       setError,
       setHasLintingError, // only for stories

services/web/locales/en.json

@@ -2923,9 +2923,17 @@
   "typst_preview_mode": "Preview mode",
   "typst_preview_pdf": "PDF (server)",
   "typst_preview_wasm": "Live (browser)",
-  "pdf_size": "PDF size",
+  "pdf_quality": "PDF quality",
-  "pdf_size_normal": "Normal",
+  "pdf_quality_normal": "Normal",
-  "pdf_size_compressed": "Compressed (low bandwidth)",
+  "pdf_quality_compressed": "Compressed",
+  "pdf_quality_draft": "Draft",
+  "pdf_download_quality_label": "Choose the quality for this download:",
+  "pdf_download_normal_desc": "Full quality, original file size.",
+  "pdf_download_ebook_desc": "Reduced file size, 150 dpi images. Good for sharing.",
+  "pdf_download_screen_desc": "Smallest file size, 72 dpi images. For low-bandwidth or slow devices.",
+  "pdf_download_ghostscript_note": "Compression is applied server-side using Ghostscript.",
+  "pdf_download_compression_failed": "Compression failed. Please try again.",
+  "downloading": "Downloading",
   "experimental": "experimental",
   "typst_wasm_error": "Preview error",
   "typst_wasm_loading": "Loading Typst compiler…",

services/web/locales/fr.json

@@ -2928,9 +2928,17 @@
   "typst_preview_mode": "Mode de prévisualisation",
   "typst_preview_pdf": "PDF (serveur)",
   "typst_preview_wasm": "Direct (navigateur)",
-  "pdf_size": "Taille du PDF",
+  "pdf_quality": "Qualité du PDF",
-  "pdf_size_normal": "Normale",
+  "pdf_quality_normal": "Normale",
-  "pdf_size_compressed": "Compressé (faible débit)",
+  "pdf_quality_compressed": "Compressé",
+  "pdf_quality_draft": "Brouillon",
+  "pdf_download_quality_label": "Choisissez la qualité pour ce téléchargement :",
+  "pdf_download_normal_desc": "Qualité maximale, taille de fichier originale.",
+  "pdf_download_ebook_desc": "Taille réduite, images à 150 dpi. Idéal pour le partage.",
+  "pdf_download_screen_desc": "Taille minimale, images à 72 dpi. Pour connexions lentes ou appareils peu puissants.",
+  "pdf_download_ghostscript_note": "La compression est appliquée côté serveur via Ghostscript.",
+  "pdf_download_compression_failed": "La compression a échoué. Veuillez réessayer.",
+  "downloading": "Téléchargement en cours",
   "experimental": "expérimental",
   "typst_wasm_error": "Erreur de prévisualisation",
   "typst_wasm_loading": "Chargement du compilateur Typst…",

services/web/types/compile.ts

@@ -81,7 +81,7 @@ export type CompileResponseData = {
 export type CompileOptions = {
   draft?: boolean
   stopOnFirstError?: boolean
-  compressPdf?: boolean
+  compilePdfQuality?: 'none' | 'ebook' | 'screen'
   isAutoCompileOnLoad?: boolean
   isAutoCompileOnChange?: boolean
   rootResourcePath?: string